Two solid hemisphere of radius 9 cm and 7 cm respectively are melted to form a metallic cone of radius 15 cm, what is the height of the cone (in cm)
(a) 9.52 cm
(b) 8.76 cm
(c) 7.64 cm
(d) 8.52 cm
Sol:
h = 9.52 cm.
Two solid hemisphere of radius 9 cm and 7 cm respectively are melted to form a metallic cone of radius 15 cm, what is the height of the cone (in cm)
(a) 9.52 cm
(b) 8.76 cm
(c) 7.64 cm
(d) 8.52 cm
Sol:
h = 9.52 cm.
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