NCERT Solutions 10th Maths Chapter 12 Areas Related to Circles Exercise 12.2

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Exercise 12.2
1.Find the area of a sector of a circle with radius 6 cm if angle of the sector is 60°.
Solution:
Given: Radius of a sector, r = 6 cm and angle of a sector, θ = 60°

2.Find the area of a quadrant of a circle whose circumference is 22 cm.
Solution:
Circumference of a circle = 22 cm [Given]

3.The length of the minute hand of a clock is 14 cm. Find the area swept by the minute hand in 5 minutes.
Solution:
Angle described by the minute hand in 60 minutes = 360°
Angle described by the minute hand in 5 minutes