February 2019 1 28 Report
TOLONG JAWAB !! ( Anak SMP. Atau anak sd yang pintar olimpiade. )
1. Tentukan keliling lingkaran jika diketahui ;
a. Jari - jari = 20 cm
b. Jari - jari = 17,5 cm
c. Diameter = 7 cm
d. Diameter = 21 cm
2. Hitunglah jari - jari lingkaran yang mempunyai keliling ;
a. 22 cm
b. 6,28 cm
c. 8,8 dm
d. 1.256 dm

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