Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

A wire is in the form of square with side 44 cm. It is bent to form a circle. What is the radius of the circle?

Options:

28 cm

21 cm 

16 cm 

32 cm

Correct Answer:

28 cm

Explanation:

The length of the wire is constant,

Perimeter of the square = circumference of circle 

    4 x (side)    = 2$\pi$ r

⇒    4 x 44       = 2 x $\frac{22}{7}$ x radius 

⇒       radius    =   28 cm