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#4776 2016-04-22 20:13:44

Relentless
Member
Registered: 2015-12-15
Posts: 631

Re: Oral puzzles

Hey!

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#4777 2016-04-23 17:11:22

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solution #2872 is correct. Excellent, Relentless! The solution #2872 is close! Good attempt, bobbym!

#2873. Find the area of the triangle whose vertices are (-5,-1), (3,-5), and (5,2).


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4778 2016-04-23 17:21:03

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4779 2016-04-24 00:26:18

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solution #2873 is correct. Neat work, bobbym!

#2874. Find the value of 'k' for which the points are collinear: (7,-2), (5,1), and (3,k).


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4780 2016-04-24 03:10:47

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4781 2016-04-24 17:06:00

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solution #2874 is correct. Excellent, bobbym!

#2875. Find the value of 'k' for which the points are collinear: (8,1), (k,-4), and (2,-5).


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4782 2016-04-24 17:46:07

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4783 2016-04-25 00:05:22

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solution #2875 is correct. Neat work, bobbym!

#2876. Find the area of the quadrilateral whose vertices, taken in order, are (-4,-2), (-3,-5), (3,-2), and (2,3).


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4784 2016-04-25 03:42:48

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4785 2016-04-25 16:45:09

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solution #2876 is correct. Excellent, bobbym!

#2877. For what value(s) of x, the area of the triangle formed by the points (5,-1), (x,4), and (6,3) is 5.5 square units?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4786 2016-04-25 18:00:53

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4787 2016-04-25 23:28:44

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solutions #2877 are correct. Marvelous, bobbym!

#2878. The area of a triangle is 5 square units. Two of its vertices are (2,1) and (3,-2). The third vertex lies on y - x + 3 = 0. Find the third vertex.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4788 2016-04-26 06:25:48

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4789 2016-04-26 20:00:32

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The two solutions in #2878 are correct. Marvelous, bobbym!

#2879. Find the area of the rhombus if vertices (3,0), (4,5), (-1,4), and (-2,-1) are taken in order.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4790 2016-04-26 21:34:23

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4791 2016-04-27 18:21:39

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solution #2879 is correct. Excellent, bobbym!

#2880. Find the point of the x-axis which is equidistant from the points (5,4) and (-2,3). Also, formed the area of the triangle formed by the points.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4792 2016-04-30 00:01:31

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4793 2016-04-30 01:02:21

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solution #2880 (former part) is correct. Neat work!

#2881. Find the area of the triangle ABC with A (1,-4) and the mid-points of the sides through being (2,-1) and (0,-1).


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4794 2016-04-30 01:17:44

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4795 2016-04-30 17:19:36

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solution #2881 is correct. Marvelous, bobbym!

#2882. If the points A(-2,k), B(-3,4), and C(7,10) are the vertices of a right angled isosceles triangle, find the value of k and hence the area of the triangle ABC, given that angle A = 90 degrees.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4796 2016-04-30 18:20:09

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4797 2016-05-01 00:35:13

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

Revised #2882. If the points A(-2,k), B(3,-4), and C(7,10) are the vertices of a right angled isosceles triangle, find the value of k and hence the area of the triangle ABC, given that angle A = 90 degrees.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4798 2016-05-01 06:10:27

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4799 2016-05-01 17:57:03

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi;

The solutions (both parts) in #2882 are correct. Excellent, bobbym!

#2883. Find the area triangle whose vertices are (1,-1), (-4,6), and (-3,-5).


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

#4800 2016-05-01 18:31:24

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

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