" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
S=4πr²=26πcm²
r= √(26/4) = √26 /2 cm
b)
S=4πr²
K=πr²
S-K=3πr²=48πcm²
r= √(48/3) = √16 = 4cm