The perimeters of two squares are 40 cm and 32 cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares .

A. $24 c m$

B. $26 c m$

C. $23 c m$

D. $28 c m$

Share this question with your friends

Correct Answer : A.

We know perimeter of square = 4(side)
So Side of first square = 40/4 = 10 cm
Side of second square = 32/4 = 8 cm
Area of third Square = 10*10 - 8*8
= 36 cm
So side of third square = 6 (because area of square = side*side)

P e r i m e t e r = 4 * S i d e = 4 * 6 = 24 c m

Comment

Also checkout

Skin Anatomy and Physiology MCQ Fungi and Lichens MCQ Banker's Discount MCQ Direct and Indirect Speech MCQ Thermo Electricity MCQ Time and Work MCQ Plants Physiology MCQ Internal Combustion MCQ Operating System MCQ MS Office MCQ Active and Passive Voice MCQ Atomic Structure MCQ