Jadi diameter Krucut tersebut adalah 30 cm
Diketahui
Krucut
Ls = 988,1 cm²
s = 21 cm
Ditanya d = ?
Jawab
Ls = π x r x s
989,1 = 22/7 x r x 21
989,1 = 22 x 3 x r
989,1 = 66 x r
r = 989,1 : 66
r = 14,98 cm
r = 15 cm
d = 2 x r
d = 2 x 15
d = 30 cm
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Jadi diameter Krucut tersebut adalah 30 cm
Diketahui
Krucut
Ls = 988,1 cm²
s = 21 cm
Ditanya d = ?
Jawab
Ls = π x r x s
989,1 = 22/7 x r x 21
989,1 = 22 x 3 x r
989,1 = 66 x r
r = 989,1 : 66
r = 14,98 cm
r = 15 cm
d = 2 x r
d = 2 x 15
d = 30 cm
Jadi diameter Krucut tersebut adalah 30 cm