Q. There are four blades of same size of a circular fan of radius 20cm, find the area of each blade.
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Answers
Answered by
1
Answer:
AREA OF CIRCLE = πr^2
AREA OF EACH BLADE= 1256.64cm^2
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Answered by
2
Answer:
Each angle=
8
360
=45°
So area of 4 blades=4×
360
θ
×πr
2
=4×
360
45
×π20
2
=628cm
2
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