Question

the hours hand of a clock is 6 centimetre find the area swept by it in 4 hours​

Answer 1

Answer:

πr² = 22/7 × 6² = 22/7 × 36 = 113.142857 cm²

Step-by-step explanation:

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Answer 2

There are 12 hours and 360 degrees which implies one hour of time rotates hour hand by 30 degrees

In 90 minutes of time , (3/2 hour) the hour clock moves (30 + 30/2) i.e 45 degree.

Area of sector of angle x is x/360 * pi* (r^2)

so area of sector is 45/360 * pi * 36 = 14.13 square cm