Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

The area of a circle that is inscribed in a square of area $17\frac{9}{11}$ cm2 is:

Options:

22 cm2

28 cm2

14 cm2

16 cm2

Correct Answer:

14 cm2

Explanation:

We know that,

Area of circle = πr2

Area of square = side2

We can write $17\frac{9}{11}$ as = $\frac{196}{11}$

side2 = $\frac{196}{11}$

side = \(\frac{14}{ \sqrt {11}}\)

Here we can find that

The side of a square = Diameter of he square

radiius = \(\frac{14}{ \sqrt {11}}\) × \(\frac{1}{2}\) = \(\frac{7}{ \sqrt {11}}\) 

Area of a circle =  πr2 = \(\frac{22}{7}\) × (\(\frac{7}{ \sqrt {11}}\))2

Area of a circle = 14