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Relation between Circumference and Diameter

Find the leng...

Question

Find the length of arc if the angle subtended at its center is $75^{\circ}$ and circumference is $120 c m$

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Solution

Angle subtended at its center $75^{\circ}$
Circumference is $120 c m$
The length of arc is $\frac{75}{360} \times 120 = 25 c m$

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