The length of the minute hond of a clock is 7 cm. Find the area swept by the minute hand from 6.00 pm to 6.10 pm
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Answer:
25 . 6cm² (approx)
Step-by-step explanation:
The total angle of 12 hours in a clock is
360
0
.
=>24 half hours =360
0
.
This means for one half an hour, angle =
24
360
0
=15
0
Area of a sector of a circle of radius 'r' and angle
θ=
360
θ
πr
2
Hence, area of the sector of the circle of radius 7 cm and angle 15
0
=
360
15
×
7
22
×7×7=6.42cm
2
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