Question

The length of minute hand of a clock is 7 cm. Find the area swept by minute hand in 12 minutes​

Answer 1

Answer:

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Step-by-step explanation:

radius = 7 cm

in 12 min

formula = theta/360 22/7 × r×r

theta = 1/40

put the value and solve

Answer 2

Step-by-step explanation:

angle formed by minute hand in 12 = 360÷ 60/12

= 72 degree

Area of sector = 72/360 * πr^2

= 1/5 * 22/7* 7*7

= 154/5

=30.8 cm^2