A area of a square is 25 cm2. What is the formula that shows the length of side b. ( the b is on all of the sides)

Question

area and perimeter.

Answer 1

Hi Rosa;

(b)(b)=25 cm²

b²=25 cm²

√(b²)=√(25 cm²)

b= 5 cm

Please note the square root of 25 was taken, as well as the square root of cm².

 

Perimeter=4b

Perimeter=4(5 cm)

Perimeter=20 cm