Given:
Circumference of a circle is 132 cm.
central angle is 135°
Formula Used:
Circumference of the circle = 2πr
Perimeter of sector = 2πr × [θ/360] + 2r
Solution:
=> 2 π r = 132
=> 2 × 22/7 × r = 132
=> r = 132 × 7/22 × 1/2
=> r = 21
Perimeter of sector = 2 × 22/7 × 21 × + 2 × 21 = 49.5 + 42 = 91.5 cm
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