Question

I have to use the net to find the surface area of this prism.

@StudyGurl14

Answer 1

Okay. Post the pic/question

Answer 2

Okay, so surface area is the total area of all the faces of a prism

Answer 3

Okay that one.

Answer 4

ok

Answer 5

so are 12 and 13 the faces?

Answer 6

Hm...are you sure that's all the info? Cause it would be impossible to find the area of the triangles without more info.

Answer 7

that's all I got beside that the answer is supposed to end in in.^2

Answer 8

hm...well. let's find the rectangle first.
Take a look at the pic below

Answer 9

We can find the surface area of the three faces all at once by doing this:
8(5 + 12 + 13)

Answer 10

Right which is 240.

Answer 11

Correct.

Answer 12

And now I am stuck...because there's missing info about the triangles....are there answer choices?

Answer 13

Wiat, nevermind lol....I get it

Answer 14

Okay, since this is a net that forms a traingular prism, the legs of each traingles have to be 5 and 12

Answer 15

Nope but I thought maybe because the triangles look like they make up the 12 inch square... maybe they might be half of 12 each? I don't know.

Answer 16

This preview packet with all these questions is going to be the death of me. It's so crazy lol.

Answer 17

Since there are two identical triangles, you can put them together into a rectangle and find the area of that. Just do
5(12)

Answer 18

Then take the answer to that^ and add it to 240

Answer 19

and that will be your answer

Answer 20

300 inches^2 then

Answer 21

right

Answer 22

You are so smart. I wish I had your brain! Well I'm off to attempt 5 more of these headache inducing questions. Thank you for helping. I appreciate it soo much :)

Answer 23

lol, thanks.
Anytime :)
Feel free to call on me if you have any more questions.

Answer 24

Okay thanks