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onthsnbase but on opposite sides. If volume of the solid is 32/3 Tt c.c. eland height oExample 7. A solid is made by joining a hemisphere and a conecone is 4 cm. Then find the base radius |
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Answer» Let the required radius be rVolume of hemisphere+ Volume of cone = Volume of the solid⇒2/3πr3+ 1/3πr2h = 32/3π⇒2r3+ 4r2= 32⇒r3+ 2r2= 16⇒r3+ 2r2- 16 = 0By replacing r with 2,we get the resultant as 0Therefore, the required radius is 2cm |
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