tiga perempat luas bangun datar dengan diameter 21cm adalah
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Luas ¾:
L = ¾ × πr²
L = ¾ × 3,14 × 10,5 cm²
L = ¾ × 3,14 × 110,25 cm
L = ¾ × 346,185 cm
L = 1.038,55 cm/4
L = 259,63 cm²
♡ Papay-!
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Luas ¾ Lingkaran
- ¾πr²
- ¾ × 3,14 × ( 21 ÷ 2 )²
- ¾ × 3,14 × 10,5²
- ¾ × 3,14 × 110,25
- ¾ × 346,185
- 1.038,555/4
- 259,63 cm²
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