Question

Find the surface area to the nearest tenth

Answer 1

Explanation:

Surface Area of Figure = Area of 4 triangular sides + Area of Base

=

`4 * ( (1)/(2) * base * height) + (length \: * \: width) \\ = 4 * ( (1)/(2) * 10 * 12.1) + (10 * 10) \\ = 4 * 60.5 + 100 \\ = 242 + 100 \\ = 342 {yd}^(2)`