Tolong jawab pake cara ya, makasih!
Keliling 1/2 lingkaran
= πd
= 22/7 x 21 cm
= 66 cm
Keliling bangun tersebut
= 66 cm + 30 cm + 21 cm + 30 cm
= 147 cm (C)
Tolong jawab pake cara ya, makasih!
Keliling 1/2 lingkaran
= πd
= 22/7 x 21 cm
= 66 cm
Keliling bangun tersebut
= 66 cm + 30 cm + 21 cm + 30 cm
= 147 cm (C)