Question

what do i need to ? help please.

A. 668 m2; 704 m2

B. 645 m2; 740 m2

C. 668 m2; 740 m2

D. 645 m2; 812 m2

Answer 1

use are formula on all faces

Answer 2

what formula do i use?

Answer 3

What are you trying to find? Surface Area?

Answer 4

I have no idea, that's all the problem was was just the picture and answer choices, that's why im lost

Answer 5

Well its all in m^2 so its some sort of area.

Answer 6

Surface Area of the entire object is, (0.5*8*9)*2 for the two triangles, plus 8* 23 for the rectangle on the back, plus 23 *12.04 for the slope on the front, plus 9*23 for the base.

Which results in
72+184+276.92+207 = 739.92

Answer 7

If you take out the two triangles you get about 668. So I dunno could be C? You probably need to get more info about whats being asked.

Answer 8

thanks so much for your help! , i'll ask my teacher about the problem if there was supposed to be a question or what, thank you :)

Answer 9

No Probs.