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Verified answer
L = 3850 cm²Ditanya
A. Panjang jari jari
B. Keliling lingkaran
Jawaban :
A). P. Jari jari
L = πr²
3850 = 22/7 x r²
(3850*7)/22 = r²
1225 = r²
√1225 = r
35 = r
Jari jari lingkaran = 35 cm
B. Keliling lingkaran
K = 2 x π x r
K = 2 x 22/7 x 35
K = 220 cm
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Verified answer
A ) Panjang jari jari= √ 3.850 cm2 ÷ 22/7
= √ 1.225
= 35 cm
B ) Keliling lingkaran
= 2 × 22/7 × 35 cm
= 220 cm