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r = 1/2 × d
= 1/2 × 14 = 7
= 22/7 × 7 × 7
= 22 × 7
= 154 m2
Jadi, luas kolam ikan adalah 154 m2
L taman di luar kolam ikan (persegi panjang) = P × L
= 30 × 20
= 600 m2
= 600 - 154
= 446 m2
Jadi, luas taman di luar kolam ikan adalah 446 m2.
Semoga membantu yah... dan selamat belajar..