Surface Area of Pyramids Instructions: Find the surface area of each figure. Round your answers to the nearest tenth, if necessary.

9514 1404 393

  288 km²

Step-by-step explanation:

The surface area is the sum of the area of the square base and the area of the four triangular faces.

  SA = (10 km)² + 4(1/2)(10 km)(9.4 km) = 288 km²

The area formulas for a square and a triangle are ...

  A = s² . . . . area of a square of edge length s

  A = 1/2bh . . . . area of a triangle with base b and height h

d

step-by-step explanation:

1

step-by-step explanation:

it's the only multiple of both and the least