The area (in cm2) of biggest circle that

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

The area (in cm²) of biggest circle that could be drawn in a square of side 18 cm is :

Options:

91π

81π

49π

168π

Correct Answer:

81π

Explanation:

We know that the area of a circle = πr²

The length of side = 18

The radius of the circle = \(\frac{ diameter }{2}\) = \(\frac{ 18 }{2}\) = 9cm

The area of the biggest circle that can be drawn inside a square = π × r² = π × (9)² = 81π