Jawaban:
L1/4 lingkaran = 1/4 × π × r²
L = 1/4 × 3,14 × 10 × 10
L = 1/4 × 314
L = 78,5 dm²
Luas =¾×π×r²
[tex] = \frac{3}{4} \times 3.14 \times 10 \times 10 = 235,5[/tex]
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Jawaban:
L1/4 lingkaran = 1/4 × π × r²
L = 1/4 × 3,14 × 10 × 10
L = 1/4 × 314
L = 78,5 dm²
Luas =¾×π×r²
[tex] = \frac{3}{4} \times 3.14 \times 10 \times 10 = 235,5[/tex]