Question

What is the surface area of the figure?




A.


408 ft2


B.


458 ft2


C.


545 ft2


D.


720 ft2

Answer 1

https://www.dropbox.com/s/pf2mpkxygxodzew/Screenshot%202015-06-06%2015.09.21.png?dl=0

Answer 2

here, we have 2 polygons like this:

Answer 3

ya

Answer 4

now the area of that polygons is equal to the sum between the areas of these rectangles:

Answer 5

namely area = 7*7+5*12=...

Answer 6

648

Answer 7

we have:
area = 49+60=...?

Answer 8

109

Answer 9

ok!

Answer 10

next we have a rectangle like this:

and its area is:
5*12=...

Answer 11

60

Answer 12

ok!

Answer 13

√

Answer 14

109 x 60?

Answer 15

now we have a rectangle like this:

and its area is:
5*7=...

Answer 16

35

Answer 17

ok!

Answer 18

next we have another rectangle like this:

and its area is:
5*7=...