D = 100/2
= 50 CM => JARI-JARI
L = π R²
= 3,14 . 50 CM . 50 CM
= 3,14 . 2.500
= 7.850 CM²
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L Lingkaran = π × r²
L Lingkaran = 3,14 × (100 ÷ 2)²
L Lingkaran = 3,14 × 50²
L Lingkaran = 3,14 × 2.500
L Lingkaran = 7.850 cm²
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D = 100/2
= 50 CM => JARI-JARI
L = π R²
= 3,14 . 50 CM . 50 CM
= 3,14 . 2.500
= 7.850 CM²
SOAL 1
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L Lingkaran = π × r²
L Lingkaran = 3,14 × (100 ÷ 2)²
L Lingkaran = 3,14 × 50²
L Lingkaran = 3,14 × 2.500
L Lingkaran = 7.850 cm²
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