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As per your syllabus, what is the length of a QUARTER CIRCLE (arc) of radius r?

A2πr
Bπr²/4
Cπr/2
Dπr
Answer & Solution
Correct answer: C. πr/2
One-fourth of 2πr = πr/2 (As per your syllabus, 's quarter-circle derivation by rotation). The other options misstate.
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