Question 6

The radius of the circle is 14 cm, an arc is subtend an angle 54 degree at center. Find the length of the arc (in cm).

Solution

Radius of circle = $$14$$ cm and angle subtended by arc = $$54^\circ$$

Length of arc = $$\frac{\theta}{360^\circ}\times2\pi r$$

= $$\frac{54}{360}\times2\times\frac{22}{7}\times14$$

= $$\frac{3}{20}\times22\times4$$

= $$\frac{66}{5}=13.2$$ cm

=> Ans - (B)

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