Jawaban:
r = 7 cm.
d = 14 cm.
Penyelesaian:
- Luas lingkaran
= 1/4 × 4 × π × r²
= 1 × 22/7 × 7 × 7
= 22/1 × 1 × 7
= 154 cm²
- Luas persegi yang ditimpa lingkaran
= s × s
= 14 × 14
= 196 cm²
- Luas daerah yang diarsir
= Luas persegi - Luas lingkaran
= 196 - 154
= 42 cm²
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Jawaban:
r = 7 cm.
d = 14 cm.
Penyelesaian:
- Luas lingkaran
= 1/4 × 4 × π × r²
= 1 × 22/7 × 7 × 7
= 22/1 × 1 × 7
= 154 cm²
- Luas persegi yang ditimpa lingkaran
= s × s
= 14 × 14
= 196 cm²
- Luas daerah yang diarsir
= Luas persegi - Luas lingkaran
= 196 - 154
= 42 cm²