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s = 26 cm
r =
Luas alas = πr² = 3,14 x 10² = 314
t = 24 cm
s = 26 cm
Ditanya : Luas alas kerucut ?
Dijawab :
r² = s² -t²
= 26² -24²
= 676 -576
= 100
r = √100
= 10 cm
Maka,
Luas alas = πr²
= 3,14 . 10²
= 314 cm²
Jad, luas alas kerucut adalah 314 cm².