The needle of a clock hour is 5cm long, find the area of the sector created by this needle in 7 minutes.

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Answer:
55/6
Step-by-step explanation:
The angle made by the needle in 7 minutes-
in 60 minutes- 360 degrees
therefore, in 7 minutes- 42 degrees
The area of sector is
degree/360*pi*radius^2
Area= 42/360 * pi * 25
Area= 7/60 * 22/7 * 25
Area= 55/6 sq.cm
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