Question

OAPB is a sector of circle of radius3.5 cm with center O and angle AOB is 120° . Then find the length of OAPBO

Answer 1

r=3.5
angle=120
area of sector= 120/360×2πr
=1/3×2×22/7×7/2
= 1/3×22
=22/3
=7.33cm
7.33+7
14.33cm it is the answer

Answer 2

Radius of the circle=3.5 cm
/_AOB= 120°
AREA OF THE SECTOR= πr^2theta/360°
= 22/7*3.5*3.5*120°/360°
=3850/300



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