" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
phi x r^2
22/7 x 7 x 7
22/7 x 49
22 x 7 = 154 cm^2
keliling
phi x d
22/7 x 14
22 x 2
=44 cm
keliling: phi × d = 22/7 × 14 = 44 cm