Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**demha****Member**- Registered: 2012-11-25
- Posts: 172

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 82,610

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.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,257

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

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,257

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

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Offline

**demha****Member**- Registered: 2012-11-25
- Posts: 172

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 82,610

Hi;

Very good result.

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,257

hi demha,

Well done for that result!

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Offline

**rogerwaters****Member**- Registered: 2013-11-02
- Posts: 85

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

Offline