pakai cara ya!!! makasih.1-5 tolong.. beso senin dikumpul

3)d=28cm
r=28/2=14cm
L=phi×r×r
=22/7×14×14
=616cm2
4)r=10cm
L=phi×r×r
=3,14×10×10
=314cm2
5)d=44cm
r=44/2
=22cm
L=phi×r×r
=3,14×22×22
=1519,76cm2