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#501 2016-05-01 17:43:54
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi;
The solution M#220 is correct. Excellent, Relentless and bobbym!
M#221. How many coins 1.75 cm in diameter and 2 mm thick must be melted to form a cuboid of dimensions 11 cm x 10 cm x 7 cm?
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.
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#502 2016-05-01 18:39:39
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#503 2016-05-01 22:24:58
- Relentless
- Member
- Registered: 2015-12-15
- Posts: 631
Re: Mensuration
Hi;
Last edited by Relentless (2016-05-01 22:25:11)
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#504 2016-05-01 23:21:19
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi;
The solution M#221 is correct. Marvelous. bobbym and Relentless!
M#222. The radius of a solid sphere in 9 cm. It is melted and drawn into a wire of diameter 2 mm. Find the length of the wire.
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.
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#505 2016-05-02 00:04:31
- Relentless
- Member
- Registered: 2015-12-15
- Posts: 631
Re: Mensuration
Hey (:
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#506 2016-05-02 02:17:27
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#507 2016-05-02 17:14:41
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi;
The solution M#222 is perfect. Keep it up, Relentless and bobbym!
M#223. A solid iron cuboidal block of dimensions 4.4 m x 2.6 m x 1 m is cast into a cylindrical pipe of internal radius 30 cm and thickness 5 cm. Find the length of the pipe.
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.
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#508 2016-05-02 20:20:58
- Relentless
- Member
- Registered: 2015-12-15
- Posts: 631
Re: Mensuration
Hi ganesh,
M#223 is the same as M#220 
Last edited by Relentless (2016-05-02 20:21:33)
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#509 2016-05-02 23:57:08
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi Relentless,
The solutions M#223 or M#220 are correct. Neat work!
M#224. Two cubes each of volume 8 cubic centimeters are joined end to end, then find the surface area of the resulting cuboid.
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.
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#510 2016-05-03 02:51:56
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#511 2016-05-03 12:27:02
- Relentless
- Member
- Registered: 2015-12-15
- Posts: 631
Re: Mensuration
Hey (:
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#512 2016-05-03 17:07:45
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi;
The solution M#224 is correct. Good work, bobbym and Relentless!
M#225. The wheels of a car are of diameter 80 cm each. How many complete revolutions does each wheel make in 10 minutes when the car is traveling at a speed of 66 km per hour?
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.
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#513 2016-05-03 23:40:27
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#514 2016-05-04 07:52:50
- Relentless
- Member
- Registered: 2015-12-15
- Posts: 631
Re: Mensuration
Hey (:
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#515 2016-05-04 17:11:37
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi;
The solution M#225 is correct. Excellent, bobbym and Relentless!
M#226. Two circles touch internally. The sum of their area is
square centimeters and the diatance between their center is 6 cm. Find the radii of the circles.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.
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#516 2016-05-04 17:43:27
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#517 2016-05-04 21:09:10
- Relentless
- Member
- Registered: 2015-12-15
- Posts: 631
Re: Mensuration
Hey (:
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#518 2016-05-05 17:24:04
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi;
The two solutions in M#226 are correct. Excellent, bobbym and Relentless!
M#227. Find the curved surface area of a right circular cone of height 15 cm and base diameter 16 cm.
In terms of
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.
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#519 2016-05-05 18:01:43
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#520 2016-05-06 15:08:30
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: Mensuration
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
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#521 2016-05-06 16:47:16
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi bobbym and Monox D. I-Fly,
M#228. The diameter of the base of a right circular cylinder is 28 cm and its height is 21 cm. Find the curved surface area.
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.
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#522 2016-05-06 16:55:30
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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
#523 2016-05-06 23:25:42
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi;
The solution M#228 is correct. Neat work, bobbym!
M#229. Find the volume (in cubic centimeters) of the largest right circular cone that can be cut off from a cube of edge 4.2 cm.
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.
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#524 2016-05-06 23:50:25
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#525 2016-06-23 23:30:41
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: Mensuration
Hi;
M#230. The volume of a vessel in the form of a right circular cylinder is
cubic centimeters and its height is 7 cm. Find the radius of the base.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.
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