If radius is 21 cm and angle at center of circle is 140° then length of arc is
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We get the length of the arc by using the formula,
Length of arc = 2 ππ r × θo360oθo360o
According to the problem, we have to find angle Q
Length of arc × 3602πr3602πr
Putting the values of length of arc and radius in the above formula, we get,
Q = 11 × 3602π213602π21
By solving this, we get the angle Q = 30 radian.
Length of arc = 2 ππ r × θo360oθo360o
According to the problem, we have to find angle Q
Length of arc × 3602πr3602πr
Putting the values of length of arc and radius in the above formula, we get,
Q = 11 × 3602π213602π21
By solving this, we get the angle Q = 30 radian.
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angle Q = 30 radian is the answer
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