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#51 2013-09-23 03:31:11
- demha
- Member
- Registered: 2012-11-25
- Posts: 195
Re: Prisms and Pyramids
I have a rectangle, with a length of 7 and a width of 4:
15. What is the perimeter? - Answer: E
A 31
B 26
C 58
D 35
E 22
F 59
16. What is the area? - Answer: A
A 28
B 65
C 79
D 13
E 10
F 19
This rectangle just became the base of a regular prism, with a height of 6:
17. What is the lateral area? - Answer: F
A 119
B 873
C 256
D 349
E 332
F 132
18. What is the total surface area? - Answer: D
A 119
B 873
C 256
D 188
E 332
F 132
19. What is the volume? - Answer: E
A 651
B 327
C 395
D 221
E 168
F 342
20. What is the area of the largest rectangular side? - Answer: D
A 65
B 32
C 36
D 42
E 16
F 34
"The thing about quotes on the Internet is you cannot confirm their validity"
~Abraham Lincoln
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#52 2013-09-23 03:39:35
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Prisms and Pyramids
Hi;
For 13) you indicate that you need some help.
You have:
h = 4
b = 6
l = 8
V = ( 4 x 6 x 8 ) / 2 = 96
Answer is E.
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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#53 2013-09-23 05:05:16
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,621
Re: Prisms and Pyramids
hi demha
Firstly Q6-10 are all correct. Well done! 
Q11 and Q12 and Q14 are also correct.
I'll look at the last section in a new post
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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#54 2013-09-23 05:13:49
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,621
Re: Prisms and Pyramids
I have a rectangle, with a length of 7 and a width of 4:
15. What is the perimeter? - Answer: E
A 31
B 26
C 58
D 35
E 22
F 59
Correct.
16. What is the area? - Answer: A
A 28
B 65
C 79
D 13
E 10
F 19
Correct.
This rectangle just became the base of a regular prism, with a height of 6:
17. What is the lateral area? - Answer: F
A 119
B 873
C 256
D 349
E 332
F 132
Correct.
18. What is the total surface area? - Answer: D
A 119
B 873
C 256
D 188
E 332
F 132
Correct.
19. What is the volume? - Answer: E
A 651
B 327
C 395
D 221
E 168
F 342
Correct.
20. What is the area of the largest rectangular side? - Answer: D
A 65
B 32
C 36
D 42
E 16
F 34
Correct.
Well done.
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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#55 2013-09-23 05:44:27
- demha
- Member
- Registered: 2012-11-25
- Posts: 195
Re: Prisms and Pyramids
Hi Bobbym,
I actually just wanted help to do the equation my self, not have someone else do it for me 
but thank you very much!
And Bob I thank you too for your help!
Sent in the lesson and got 20/20.:cool:
Last edited by demha (2013-09-23 06:34:06)
"The thing about quotes on the Internet is you cannot confirm their validity"
~Abraham Lincoln
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#56 2013-09-23 08:21:31
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Prisms and Pyramids
Hi;
Very good result.
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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#57 2013-09-23 18:53:29
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,621
Re: Prisms and Pyramids
hi demha,
Well done for that result!
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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#58 2013-11-04 04:57:07
- rogerwaters
- Member
- Registered: 2013-11-02
- Posts: 85
Re: Prisms and Pyramids
What is the answer to number 5?
D or A? Or something else?
I think there are things in my story that have helped my creativity. Your father being killed, for instance, is one of the best things that could happen to a kid if he's going to write poetry or songs.
-Roger Waters
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