" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
luas= phi x r^2
= 3,14 x 22^2
= 3,14 x 484
= 1519,76 cm^2
2. luas = phi x r^2
1386 = 22/7 x r^2
1386 x 7 = 22 x r^2
9702 : 22= r^2
441 = r^2
r= akar 441
r= 21 cm
3. luas = phi x r^2
2464 = 22/7 x r^2
2464 x 7= 22 x r^2
17248 : 22 = r^2
r^2 = 784
r= akar 784
r= 28cm