If the ratio of the areas of two squares is 16:25, what is the ratio of their perimeters?

Topic: Geometry &amp; Mensuration
Subtopic: Squares

A4:5

B2:5

C16:25

D8:25

Explanation

Area ratio = a1^2 / a2^2 = 16/25 => Side ratio a1/a2 = 4/5. Perimeter ratio is equal to side ratio = 4:5.

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