3 years ago

Surface Area of Pyramids

Mathematics

1 answer:

iren [92.7K]3 years ago

4 0

9514 1404 393

Answer:

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

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