Luas yang diarsir
= (p×l) - (1/2×π×r×r)
= (20×10) - (1/2×3,14×10×10)
= 200 cm² - 157 cm²
= 43 cm²
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PENYELESAIAN:
Luas yang diarsir
= (p×l) - (1/2×π×r×r)
= (20×10) - (1/2×3,14×10×10)
= 200 cm² - 157 cm²
= 43 cm²