Question

(4) Find the perimeter of a sector of a circle if its measure is 90° and radius is 7 cm.











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Answer 1

Step-by-step explanation:

perimeter of sector = 2πr(∅/360) +2r

= (2×22/7×7)90/360 +2×7

= 44×1/4 + 14

= 11 +14

= 25cm

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