please help with geometry homework need help very quickly!

Question

Identify the surface area of the composite figure.

A.) S = 180 m²

B.) S = 112 m²

C.) S = 336 m2

D.) S = 300 m²

Need help very quickly!

Answer 1

On the top, there are 4 triangles, the area of a triangle is 1/2 bh. The sides and bottom are squares. There are 5 of them with area of a square being side x side. So is summary:

4(area of a triangle)+5(area of a square)

4(1/2bh)+5(s)(s)

Plugging in the numbers:

4(1/2)(6)(10)+5(6)(6)

120+180 = 300

D.) S = 300 m²