Question

find the surface area of the square pyramid. next, find the area of the square base. area of the 4 triangles: 280 cm² area of the square: ? cm²

Explanation:

Step1: Recall the formula for the area of a square

The formula for the area of a square is \( A = s^2 \), where \( s \) is the side - length of the square.

Step2: Substitute the side - length into the formula

Given that the side - length \( s = 10\space cm \), we substitute \( s = 10 \) into the formula \( A=s^2 \). So, \( A=(10)^2=10\times10 = 100\space cm^2 \).

Answer:

\( 100\space cm^2 \)