luas daerah yang diarsir adalah.... pls dijawab pake cara yak..

(1/2x22/7x14x14)-(1/2x3,14x10x10)-(1/2x3,14x4x4)
308-157-25,12
125,88

Itu kalo gak salah

Luas bangun 1. =1/2×phi×r kuadrat
=1/2×3,14×10 kuadrat
=1/2×3,14×100
=1/2×314
=157cm
Luas bangun 2.=1/2×phi×r kuadrat
=1/2×3,14×4 kuadrat
=1/2×3,14×16
=1/2×50,24
=25,12
Luas bangun 3.=1/2×phi× r kuadrat
=1/2×22/7×14 kuadrat
=1/2×22/7×196
=1/2×616
=308
Luas bangun yang diarsir=308-25,12-157
=125,88cm