Find the perimeter of a sector of a circle of its measures 90degree and radius 7cm
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Answer:
11 cm
Step-by-step explanation:
The length = The perimeter of the sector.
The formula for getting the perimeter of the sector is given by:
Perimeter of a sector = Ф/360π2r
Ф = The angle of the sector
r = The radius of the sector
Doing the substitution we have :
Perimeter is :
Perimeter = 90/360 × 22/7 × 7 × 2
= 11 cm
The length or rather the perimeter of the arc is thus 11 cm
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