Secondary School (English Medium) (5 to 8) इयत्ता ८ - CBSE Question Bank Solutions for Mathematics

A coin is tossed 200 times and head appeared 120 times. The probability of getting a head in this experiment is ______.

Numbers 1 to 5 are written on separate slips, i.e one number on one slip and put in a box. Wahida pick a slip from the box without looking at it. What is the probability that the slip bears an odd number?

A glass jar contains 6 red, 5 green, 4 blue and 5 yellow marbles of same size. Hari takes out a marble from the jar at random. What is the probability that the chosen marble is of red colour?

Classify the following statements under appropriate headings.

1. Getting the sum of angles of a triangle as 180°.
2. India winning a cricket match against Pakistan.
3. Sun setting in the evening.
4. Getting 7 when a die is thrown.
5. Sun rising from the west.
6. Winning a racing competition by you.

A quadrilateral whose all sides are equal, opposite angles are equal and the diagonals bisect each other at right angles is a ______.

If the adjacent sides of a parallelogram are equal then parallelogram is a ______.

In the figure, BEST is a rhombus, Then the value of y – x is ______.

If a diagonal of a quadrilateral bisects both the angles, then it is a ______.

If all sides of a quadrilateral are equal, it is a ______.

In a rhombus diagonals intersect at ______ angles.

A rhombus is a parallelogram in which ______ sides are equal.

All rhombuses are squares.

A Rangoli has been drawn on a flor of a house. ABCD and PQRS both are in the shape of a rhombus. Find the radius of semicircle drawn on each side of rhombus ABCD.

Diagonals of a quadrilateral are perpendicular to each other. Is such a quadrilateral always a rhombus? Give a figure to justify your answer.

ABCD is a rhombus such that the perpendicular bisector of AB passes through D. Find the angles of the rhombus.

Hint: Join BD. Then ∆ABD is equilateral.

Construct a rhombus whose side is 5 cm and one angle is of 60°.

Construct a rhombus CLUE in which CL = 7.5 cm and LE = 6 cm.

Product of 6a² – 7b + 5ab and 2ab is ______.

p²q + q²r + r²q is a binomial.

Multiply the following: 

a, a⁵, a⁶