Question

Please help me!!!!!

I WILL FAN AND MEDAL!!!

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

I am trying to put on the picture.

Answer 2

first, find DG using the Pythagorean theorem
then, find AG using the Pythagorean theorem again

Answer 3

How do I do that??

Answer 4

a^2 + b^2 = c^2, where a and b are the legs of a right triangle and c is the hypotenuse

look at the bottom of the shape: there's a right triangle with legs 5 and 12, so what is the length of the hypotenuse, DG?

Answer 5

so multiply?

Answer 6

legs = a and b = 5 and 12

a^2 + b^2 = c^2

what is a^2 + b^2?

Answer 7

so 5x5 +12x12 right??

Answer 8

yes

Answer 9

169

Answer 10

right, so a^2 + b^2 = c^2 = 169, so what is c?

Answer 11

169

Answer 12

nope, please try again

c^2 = 169
what is c?

Answer 13

sorry someone was at my door.

Answer 14

@Vocaloid are you there. I am still not seeing it.

Answer 15

if c squared is 169, then what is c?

Answer 16

hint: sqrt(c^2) = c

Answer 17

the square root of c^2 is c, so if c^2 = 169, what is c?

Answer 18

hold on.

Answer 19

13?

Answer 20

yes, we just found DG, which is 13. we can use the pythagorean theorem again to solve for AG

Answer 21

ok so do the same thing?

Answer 22

so I got 185 first right?

Answer 23

yes, so what's next?

Answer 24

find the square root?

Answer 25

yup

Answer 26

ok one sec

Answer 27

I got 13.6014705087

Answer 28

right, so what happens when you round to the nearest 10th?

Answer 29

13.6?

Answer 30

yup! good job!

Answer 31

Thank You!!!