Question

Calculate the surface area of the pyramid below. SA= blank ft^2 (round to 1 decimal place)

please help!!

Answer 1

56.4

Explanation:

The area of the rectangular base is
`(4.5)(3.5)=15.75` square feet.

The combined area of the four triangular faces is
`4(1/2)(3.5)(5.8)=40.6` square feet.

Taking the sum of these areas, the surface area is
`40.6+15.75 \approx 56.4` ft².