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Dik: r: 10cm, t: 28cm
Dit: Volume?
Rumus:
Ket:
Jwb: 3,14× 10cm× 10cm× 28cm= 8792cm
3.
Dik:
Bangun 1: Segitiga
a: 22cm+ 6cm= 28cm
t: 16cm
Bangun 2: Trapesium
a: 28cm
b: 22cm
t: 8cm
Dit: Luas?
jwb: Rumus L1:
L1= 224 cm
Rumus L2:
L2= 116 cm
Jadi, 224cm + 116cm= 340cm^
4.
Dik: r: 10cm
Dit: Luas 3/4
Jwb: Rumus:
Ket:
3,14× 10× 10× 3/4× 2= 472
Jadi, Luas bangun tersebut adalah 472cm^