diketahui : keliling lingkaran = 1.456
jari-jari= 49 cm
ditanya : luas kolam?
jawab;
luas lingkaran = πr²
= [tex]\frac{22}{7}[/tex]×49×49
=7.546cm³
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diketahui : keliling lingkaran = 1.456
jari-jari= 49 cm
ditanya : luas kolam?
jawab;
luas lingkaran = πr²
= [tex]\frac{22}{7}[/tex]×49×49
=7.546cm³