Question

help please surface area of prism and triangles

Answer 1

Well, I suppose you know how to find the area of a rectangle. It's a lot like that, but for 6 rectangles! I'll start you off.
3 in times 11 in = 33. Since it's the same on the other side- that's 66 square inches. Can you do the rest? (you only need to do two more, just multiply them by two sine the opposite side will always be the same.)
Once you're done you can add them up.

Answer 2

since*

Answer 3

front is 18 isnt it?

Answer 4

18 by 3. 3 is the height, 8 is the width.

Answer 5

18*

Answer 6

f/b = 18x3 =56 x2 =108

Answer 7

Are you sure 18x3 is 56?

Answer 8

oh wait 54

Answer 9

Oh, probably a typo, since you got 108. Alright, so you have 1 more side to go,

Answer 10

the top

Answer 11

(and bottom)

Answer 12

t/b = 11x3 =33x2=66 ?

Answer 13

is that right?

Answer 14

That's the one I did. The top is 18*11

Answer 15

ok

Answer 16

18x 11= 198x2 =396

Answer 17

Yup, so now let's add it up. 396+66+108 =

Answer 18

507

Answer 19

Did you mean 570?

Answer 20

opps yea

Answer 21

sorry

Answer 22

570

Answer 23

NP. So that's your answer.

Answer 24

thanks

Answer 25

You're welcome.

Answer 26

u get a medal

Answer 27

Yaaaaaaaayyyyy