A car is running on a circular path of radius equal to double the arc of the circle travelled by the car. Find the angle subtended by the arc at the centre of the circular path.
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The formula for the length of an arc is
Length of an arc= (x/360°)×2πr (since circle is 360° the formula for the circumference becomes 2πr)
Where, x= angle from the centre of an arc
Here, angle is 30° and radius is 6m
Hence, length of an arc= (30°/360°)×2×π×3= 3.1416m
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