Please help total surface area

161ft

Step-by-step explanation:

Area of a triangle is 1/2 (base x height)

2 triangles at:

1/2(5ft x5ft) = 12.5ft

1/2(5ft x 5ft) = 12.5ft

Then the area of the 3 rectangles

8 x 7 = 56ft

8 x 5 = 40ft

8 x 5 = 40ft

12.5ft + 12.5 + 56ft + 40ft + 40ft = 161 ft

1,918

step-by-step explanation:

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2