Berapa keliling bangun gabungan jika diameter lingkaran = 28 cm Kaki trapesium = 32 cm Alas trapesium = 40 cm Jelaskan!!

Dik =
diameter lingkaran = 28 cm
kaki trapesium = 32 cm
alas trapesium = 40 cm
Dit = keliling bangun yng diarsir = ?
jawab :
kll bangun = phi x diameter
1/2 lingkaran = 22/7 x 1/2 x 28 = 11 x 4 = 44 cm
kll bangun = 44+(32x2)+40 = 44+62+40 = 106+40 = 146 cm.