Embibe Experts Solutions for Chapter: Surface Areas and Volumes, Exercise 1: Jammu and Kashmir Board-2019

The volume of the cone is :

A cubical block of side $7 cm$ is surmounted by a hemisphere. What is the greatest diameter the hemisphere can have ? Find the surface area of the solid.

The slant height of a frustum of a cone is $4 \mathrm{c}\mathrm{m}$ and the perimeters (circumference) of its circular ends are $18 \mathrm{c}\mathrm{m}$ and $6 \mathrm{c}\mathrm{m}$. Find the curved surface area of the frustum.

Volume of a right circular cone is:

A toy is in the form of a cone of radius $3.5 \mathrm{cm}$ mounted on a hemisphere of same radius. The total height of the toy is $15.5 \mathrm{cm}$. Find the total surface area of the toy.

The slant height of a frustum of a cone is $4 \mathrm{cm}$ and perimeters of its two circular ends are $18 \mathrm{cm}$ and $6 \mathrm{cm}$. Find the curved surface area(in sq.cm.) of the frustum