" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
r² = 1540
r² = (1540 x 7) : 22
r² = 490
r = √490 = 7√10 cm
b. πr²t = 2464
22/7 x r² = 2464
r² = 2464 x 7/22
r² = 784
r = √784 = 28 cm