Question

Ashley is putting together a square bulletin board for her new room. The area of the bulletin board is 196cm². What is the length of each side of the bulletin board?

A) 12cm
B) 14cm
C) 7cm
D) 28cm

Answer 1

The length of each side of Ashley's square bulletin board, with an area of 196 cm², is calculated by taking the square root of the area, which is 14 cm.

Step-by-step explanation:

To find the length of each side of Ashley's square bulletin board, we need to take the square root of the area because the area of a square is equal to the side length squared. The area given is 196 cm², so the side length is the square root of 196 cm². This calculation gives us the length of each side:

√(196 cm²) = 14 cm

The length of each side of Ashley's square bulletin board is therefore 14cm, which corresponds to option B)