Question

What is the length of stack A G with bar on top in the rectangular prism? Round your answer to the nearest tenth.



A.
12.6 cm

B.
13.0 cm

C.
13.6 cm

D.
14.2 cm

Answer 1

http://static.k12.com/calms_media/media/1579000_1579500/1579247/1/cf43f340585d0286c173c911596c0a71ac45b034/MS_IMC-150123-130601.jpg

Answer 2

@JoannaBlackwelder

Answer 3

Do you know the Pythagorean Theorem?

Answer 4

A^2+B^2+C^2

Answer 5

Close, a^2+b^2=c^2

Answer 6

So, can you use that to find DG?

Answer 7

yes

Answer 8

Cool, what do you get?

Answer 9

169

Answer 10

That is c^2. What is c?

Answer 11

144

Answer 12

Wait, so

Answer 13

You got 169 the first time. Which is what I get for 5^2 + 12^2

Answer 14

And that equals 169 which is equal to c^2

Answer 15

169=c^2

Answer 16

Can you solve for c?

Answer 17

wait so add 169 & c^2

Answer 18

No,
So, we need to find a number that when we square it, it equals 169

Answer 19

when i do that is says error

Answer 20

Hm, what do you mean?

Answer 21

13

Answer 22

Right :-)

Answer 23

So, now we are looking for AG. Any thoughts on how to get that?

Answer 24

same way ?

Answer 25

Yep. Using what right triangle?

Answer 26

A

Answer 27

@JoannaBlackwelder

Answer 28

No, that's not what I get.

Answer 29

What triangle are you looking at?

Answer 30

AG

Answer 31

AG isn't a triangle. It's a line.

Answer 32

C

Answer 33

How did you get that?

Answer 34

Do I Need To Be Looking For Angle
or did i already get the answer

Answer 35

You are looking for the length of AG.