Find the surface area of the right square pyramid. round your answer to the nearest hundredth.

ANSWER

C. 145.75 yd²

EXPLANATION

First we need to calculate the area of the four triangular faces.

The lateral surface area

The area of the base is

To find the total surface area, we add the area of the square base to the area of the 4 triangular faces.

Therefore the total surface area is

Option C.

Step-by-step explanation:

To calculate the surface area of the right square pyramid, you need to use the following formula:

Where  "s" is the length of any side of the base and "l" is the slant height.

You can identify in the figure that:

Therefore, substituting these values into the formula, you get this result:

this is answer of 144 cubic meters