English Medium Class 9 - CBSE Question Bank Solutions

One angle is equal to three times its supplement. The measure of the angle is

Two straight lines AB and CD cut each other at O. If ∠BOD = 63°, then ∠BOC =

In the given figure, if l || m, what is the value of x?

If two cubes each of side 6 cm are joined face to face, then find the volume of the resulting cuboid.

Three cubes of metal whose edges are in the ratio 3 : 4 : 5 are melted down in to a single cube whose diagonal is 12 `sqrt(3)` cm. Find the edges of three cubes.

Two complementary angles are such that two times the measure of one is equal to three times the measure of the other. The measure of the smaller angle is

If the perimeter of each face of a cube is 32 cm, find its lateral surface area. Note that four faces which meet the base of a cube are called its lateral faces.

If the length of a diagonal of a cube is `8 sqrt(3)` cm, then its surface area is

If the volumes of two cubes are in the ratio 8: 1, then the ratio of their edges is

In the given figure, AB || CD || EF and GH || KL. The measure of ∠HKL is

A cuboid has total surface area of 372 cm² and its lateral surface area is 180 cm², find the area of its base.

The volume of a cube whose surface area is 96 cm², is

Three cubes of each side 4 cm are joined end to end. Find the surface area of the resulting cuboid.

In the given figure, if CP || DQ, then the measure of x is

The length, width and height of a rectangular solid are in the ratio of 3 : 2 : 1. If the volume of the box is 48cm³, the total surface area of the box is

The surface area of a cuboid is 1300 cm². If its breadth is 10 cm and height is 20 cm², find its length.

If the areas of the adjacent faces of a rectangular block are in the ratio 2 : 3 : 4 and its volume is 9000 cm³, then the length of the shortest edge is