February 2019 1 32 Report
1. Hitunglah Keliling lingkaran jika :
a.) r = 15 cm
b.) r = 21 cm
c.) d = 100 cm
d.) d = 42 cm

2. Hitunglah Luas lingkaran
jika :
a.) r = 2,1 cm
b.) r = 4,2 cm
c.) d = 40 cm
d.) d = 50 cm

tolong di kerjakan dengan teliti,dan di sertakan cara nya !

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