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)

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:

Image 248

h = 9.52 cm.

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