" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= 3,14×20
=62,8
b. k= 2.phi.r
= 2×22per 7×70
= 440
L = phi r^2 = 22/7 × 49 = 22 × 7 = 154 cm^2