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Luas 3/4 lingkaran = 3/4 x π x r²
= 3/4 x 22/7 x 28 x 28
= 1848 cm²
П × r²
≡ Diketahui :
Radius ( r ) = 28 cm
Luas daerah yang diarsir adalah 3/4
≡ Penyelesaian :
3/4 × 22/7 × 28² = 1848
Jawaban ⇔ L = 1848 cm²