Haneet Gandhi and Yukti Sharma Solutions for Chapter: Three-Dimensional Shapes, Exercise 2: PREVIOUS YEARS' QUESTIONS

To fill a rectangular tank of area $700 m^2$, $140 m^3$ of water is required. What will be the height of the water level in the tank? 

Which one of the following 3D shapes does not have a vertex?

If $x, y$ and $z$ represent the number of faces, number of determines and number of edges respectively of a polyhedral, then which of the following is true? 

Two sheets of paper with measure $22 cm$ by $28 cm$ are taken. Each sheet is then rolled into a cylinder, one having the height $22 cm$ and the other of height $28 cm$. The difference in their volumes (in $c{m}^3$) will be ______.

The sum of mean, mode and median data $6, 3, 9, 5, 1, 2, 3, 6, 5, 1, 3$ is ______.

The internal base of a rectangular box is $15 cm$ long and $12\frac{1}{2} cm$ wide and its height is $7\frac{1}{2} cm$. The box is filled with cubes each of side $2\frac{1}{2} cm$. The number of cubes will be ____.

Four times the area of the curved surface of a cylinder is equal to $6$ times the sum of the areas of its bases. If its height is $12 cm$, then its volume, in $c{m}^3$, is _____.

Forty-two cubes each of side $1 cm$ are glued together to form a solid cuboid. If the perimeter of the base of the cuboid is $18 cm$, then its height, in $cm$, is ____.