Answer:
Explanation:
The surface area consists of an equilateral triangle of sides 6 ft and 3 (the base) and 3 side isosceles triangles of height 8 ft.
Area of the 3 side triangles
= 3 * 1/2 * 6 * 8
= 72 ft^2.
Area of the base = 1/2* 6 * height
Height = √(6^2 - 3^2)
= √27
Area of base = 1/2 * 6 * √27
= 15.588 ft^2.
Total surface area
= 87.6 ft^2 to the nearest tenth.