Some examples from this set of practice questions
1.
Find arc length of a circle when its radius is 7 cm and center angle is 90 degrees.
Answer: 11 cm
2.
Steve spends rupees 25 to color an arc of length 5 meter of a circular field whose radius is 12 meter. How much he will spend to color whole boundary of the field?
Answer: Approx. 375 rupees
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