Sebuah kerucut memiliki volume 308cm kubik.panjang jari2 alasnya 7 cm tinggi kerucut tersebut adalah
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Penyelesaian
Volume = ⅓ x π x r² x t
308 cm = ⅓ x 22/7 x 7² x t
308 cm = ⅓ x 22/7 x 49 x t
308 cm = ( 22 x 49 ) ÷ ( 3 x 7 )
308 cm = 1.078 ÷ 21
308 cm = 51.3
Tinggi = 308 ÷ 51.3
Tinggi = 6.0
A.9
B.8
C.7
D.6