Jawab:
A. 2.464 m²
Penjelasan dengan langkah-langkah:
rumus keliling = 2πr
176 = 2πr
r = 176 / 2π
r = 88 / π
r = 88 / (22 / 7) = 88 x 7 / 22 = 28
luas lingkaran = πr²
22/7 x 28² = 22/7 x 784 = 17.248 / 7 = 2.464 m²
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Jawab:
A. 2.464 m²
Penjelasan dengan langkah-langkah:
rumus keliling = 2πr
176 = 2πr
r = 176 / 2π
r = 88 / π
r = 88 / (22 / 7) = 88 x 7 / 22 = 28
luas lingkaran = πr²
22/7 x 28² = 22/7 x 784 = 17.248 / 7 = 2.464 m²