English Medium कक्षा ९ - CBSE Question Bank Solutions for Mathematics

Construct a triangle whose perimeter is 6.4 cm, and angles at the base are 60° and 45° .

Using ruler and compasses only, construct a ΔABC from the following data:
AB + BC + CA = 12 cm, ∠B = 45° and ∠C = 60°.

Construct a right triangle ABC whose base BC is 6 cm and the sum of hypotenuse AC and other side AB is 10 cm.

Construct a right-angled triangle whose perimeter is equal to 10 cm and one acute angle equal to 60°.

Construct a triangle ABC such that BC = 6 cm, AB = 6 cm and median AD = 4 cm.

Construct a triangle XYZ in which ∠Y = 30°, ∠Z = 90° and XY + YZ + ZX = 11.

Which of the following numbers can be represented as non-terminating, repeating decimals?

Plot the following point on the graph paper:

(2, 5)

Plot the following point on the graph paper:

(4, −3)

Plot the following point on the graph paper:

(−5, −7)

Plot the following point on the graph paper:

(7, −4)

Plot the following point on the graph paper:

 (−3, 2)

Plot the following point on the graph paper:

(7, 0)

Plot the following point on the graph paper:

(−4, 0)

Plot the following point on the graph paper:

 (0, 7)

Plot the following point on the graph paper:

(0, −4)

Two straight line AB and CD intersect one another at the point O. If ∠AOC + ∠COB + ∠BOD = 274°, then ∠AOD =

Consider the following statements:
When two straight lines intersect:
(i) adjacent angles are complementary
(ii) adjacent angles are supplementary
(iii) opposite angles are equal
(iv) opposite angles are supplementary

Of these statements

Given ∠POR = 3x and ∠QOR = 2x + 10°. If POQ is a straight line, then the value of x is

In the given figure, AOB is a straight line. If ∠AOC + ∠BOD = 85°, then ∠COD =