Sebuah lingkaran mempunyai jari kari 20cm berapa keliling?.... Question from @ItsFadhil

May 2019 2 17 Report

Sebuah lingkaran mempunyai jari kari 20cm berapa keliling?

wahyuemma12 D = 2 x r = 2 x 20 = 40 cm

keliling lingkaran= π x diameter = 3,14 x 40 = 125,6 cm

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chekapuspita
$2 \times \pi \times {r}^{2} \\ = 2 \times \frac{22}{7} \times {20}^{2} = 800 \times \frac{22}{7} = 2514.28$

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