Explain Q.4 of 3.1

1.	Explain Q.4 of 3.1
Answer» GivenRedius r=100cmLength l=22cmThere forr=l/tita=tita=l/r=11/50rediunThere forDigri measure=180/π*11/50=180×11/50π=180×11/50×22/7=180×11×7/50×22=(63/5)°=12°(2/5×0)=12°36\'°

Discussion