Answer
Ans. a. 2.09cm
b. 10.47cm
Work Step by Step
Given:-a.r=4cm
We know that
Length of arc=2πr×θ/360°
=2×22/7×4×${30/360}$
=2.09cm
b. r=4
Length of arc=2πr×θ/360
=2×22/7×4×$\{150/360}
=10.47cm
Calculus, 10th Edition (Anton)
by Anton, Howard
Published by
Wiley
ISBN 10:
0-47064-772-8
ISBN 13:
978-0-47064-772-1
Appendix B - Trigonometry Review - Exercise Set B - Page A24: 33
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