Find the area of a sector of a circle of radius 28 cm and central angle 45°.
If the area and circumference of a circle are numerically equal, then the diameter of the circle is . ... units.
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Step-by-step explanation:
r= 28cm
central angle (theta)= 45
area of sector=theta/360*pi*r*r
=45/360*22/7*28*28
= 308cm²
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