Secondary School (English Medium) (5 to 8) Class 8 - CBSE Question Bank Solutions

What is the area of the rhombus ABCD below if AC = 6 cm and BE = 4 cm?

Area of a quadrilateral ABCD is 20 cm² and perpendiculars on BD from opposite vertices are 1 cm and 1.5 cm. The length of BD is ______.

If the diagonals of a rhombus get doubled, then the area of the rhombus becomes ______ its original area.

Area of a rhombus = `1/2` product of ______.

The area of a rectangular field is 48 m² and one of its sides is 6 m. How long will a lady take to cross the field diagonally at the rate of 20 m/minute?

The walls and ceiling of a room are to be plastered. The length, breadth and height of the room are 4.5 m, 3 m, and 350 cm respectively. Find the cost of plastering at the rate of Rs 8 per m².

Most of the sailboats have two sails, the jib and the mainsail. Assume that the sails are triangles. Find the total area sail of the sailboats to the nearest tenth.

Most of the sailboats have two sails, the jib and the mainsail. Assume that the sails are triangles. Find the total area sail of the sailboats to the nearest tenth.

Most of the sailboats have two sails, the jib and the mainsail. Assume that the sails are triangles. Find the total area of sail of the sailboats to the nearest tenth.

A four-digit number 4ab5 is divisible by 55. Then the value of b – a is ______.

A six-digit number is formed by repeating a three-digit number. For example 256256, 678678, etc. Any number of this form is divisible by ______.

What is the maximum exterior angle possible for a regular polygon?

Look at the map given below
  Houses

Now, answer the following questions.

On which road is the Police Station situated?

Look at the map given below
  Houses

Now, answer the following questions.
If Ritika stays adjacent to bank and you have to send her a card, what address will you write?

Look at the map given below
  Houses

Now, answer the following questions.

Which sector has maximum number of houses?

Look at the map given below
  Houses

Now, answer the following questions.

In which sector is Fire Station located?

Look at the map given below
  Houses

Now, answer the following questions.

 In the map, how many sectors have been shown?

Verify the property x × (y × z) = (x × y) × z of rational numbers by using

`x = 0, y = 1/2` and `z = 1/4`

and What is the name of this property?

Write five rational numbers greater than − 2

Find the angle measure x in the given Figure