A sector of a circle has a radius of 14 cm.Find;
a. the length of the arc which subtends an angle of 65 degrees .
b. the area of the sector if it has an angle of 80 degrees.
c. the perimeter of the sector if it has an angle of 70 degrees.
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Step-by-step explanation:
Perimeter is the total length of the shape.
A sector in a circle is made up of two radii and one arc.
length of the radii= 2×r=2×14=28cm
length of the arc= rθ
Given θ=60
∘
=π/3radians
Length of the arc= rθ=14×π/3=44/3cm
Total length=28+14.67=42.67cm
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