If the area of a sector of circle of radius 18 cm is 27πcm^2.then angle theta is.
Answers
Answered by
0
Answer:
30
Step-by-step explanation:
ATQ
x/360 x π x 18^2 = 27π
x/360π x 324 = 27π
x = 27π x 360/324π
x = 30
Answered by
2
Area of sector = Xπr^2/360=108π
r=18
x = central angle=?
X = 108πx 360/π18^2 = 120 degree
Arc length=Xx2πr/360
x = 120
r=18
Arc length=120x2xπxl8/360
= 12π = 12x3.14=37.68cm
=37.68cm
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