Find the perimeter of a secor of angle 45° of a circle with radius 7 cm.
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Answer:
Step-by-step explanation:
perimeter of sector = 2(radius) + 45/360 × 2πr
radius = 7 cm
45/360= 1/8
=2(7) + 1/8 × 2 × 22/7× 7
=14 + 1/8 × 44
= 14 + 5.5
= 19.5 cm
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