diameter 30 cm
maka jari - jari = 15 cm
luas = 3,14 x 15² = 706,5 cm²
keliling = 3,14 x 30 = 94,2 cm
semoga membantu :)
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diameter 30 cm
maka jari - jari = 15 cm
luas = 3,14 x 15² = 706,5 cm²
keliling = 3,14 x 30 = 94,2 cm
semoga membantu :)
Dit : Luas?
jari jari (r)?
diameter (d)?
keliling (KO)?
jwb:
*Luas lingkaran : phi.r^2
3,14.15.15
706,5 cm.
*r : 15 cm
*d : 30 cm
*KO : 2.phi.r
2.3,14.15
94,2 cm.
semoga membantu :)