Find the perimeter of a sector with an angle 45 of a circle of radius 7cm
Answers
Answered by
86
LENGTH OF ARC = Θ/360 × 2πr
= 45 / 360 × 2 × 22/7 × 7
= 8×44
= 352 cm
PERIMETER OF SECTOR = 2 RADIUS + LENGTH OF ARC
= 2 × 7 + 352
= 14 + 352
= 366 cm
Perimeter of sector = 366 cm
= 45 / 360 × 2 × 22/7 × 7
= 8×44
= 352 cm
PERIMETER OF SECTOR = 2 RADIUS + LENGTH OF ARC
= 2 × 7 + 352
= 14 + 352
= 366 cm
Perimeter of sector = 366 cm
Answered by
48
Answer:
Step-by-step explanation:
Theta/360 × 2πr
45/360×2×22/7×7 = 11/2=5.5
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