Penjelasan dengan langkah-langkah:
1. d = 74 x 2 = 148 B
2. C.
3. K = πd
572 = 22/7 d
d = 572 x 7 : 22
d = 182 cm B
4. K = πr²
= 22/7 x 154 x 154
= 74.536 cm²
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Penjelasan dengan langkah-langkah:
1. d = 74 x 2 = 148 B
2. C.
3. K = πd
572 = 22/7 d
d = 572 x 7 : 22
d = 182 cm B
4. K = πr²
= 22/7 x 154 x 154
= 74.536 cm²