centre angle 45 degree and radius 16 centimetre.find the length of the arc area of a sector an perimeter of sector.
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Step-by-step explanation:
Given, Ø = 45° , r = 16cm
Length of arc = Ø/360° ×2πr
= 45°/360° ×2×22/7×16
= 8×32×π
= 256πcm
Perimeter of sector = 2r+length of arc
= 2(16)+256πcm
= 32cm+256πcm
= 32(1+8π)cm
Area of sector = Ø/360° ×πr²
= 45°/360° ×22/7×(16)²
= 8×π×256
= 2048πcm²
Put the value of π that is given as 22/7 or 3.14
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