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=
=
= 9
r1 = x 9 = 3
r2 = x 9 = 6
jadi jawabannya adalah B. 3cm dan 6cm
= √225 - 144
= √ 81
= 9cm
1 : 2 = 1 + 2 = 3
Panjang jari²1 = 1/3 x 9 = 3cm²
panjang jari²2 = 2/3 x 9 = 6cm²
Jawaban ( B )