Find area of sector If A = 70° and diameter of circle Is 36cm?
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Answer:
Answer
Given area of sector of circle =54π cm
2
Radius of circle=36cm
Now area of circle=πr
2
×(
360
θ
)
54π=
360
θ
×πr
2
360
θ
=
36×36
54
…………(1)
and length of arc=2πr(
360
θ
)
L=2π×36×
36×36
54
[Length of arc =3πcm].
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