Jawab:
1. 1/2πr² = 1/2x3,14x20x20 = 628 cm²
2. a. πr² = 22/7x7x7= 154 cm²
b. πr² = 3,14x10x10=314 cm²
Penjelasan dengan langkah-langkah:
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Verified answer
Jawab:
1. 1/2πr² = 1/2x3,14x20x20 = 628 cm²
2. a. πr² = 22/7x7x7= 154 cm²
b. πr² = 3,14x10x10=314 cm²
Penjelasan dengan langkah-langkah: