English Medium इयत्ता ९ - CBSE Question Bank Solutions

Write the coefficient of x² in the following:-

`sqrt2x-1`

Write the degree of the following polynomial:-

4 - y²

Write the degree of the following polynomial:-

`5t - sqrt7`

Write the degree of the following polynomial:-

3

The exterior angles, obtained on producing the base of a triangle both way are 104° and 136°. Find all the angles of the triangle.

Compute the value of x in the following figure:

Compute the value of x in the following figure:

Compute the value of x in the following figure:

In the given figure, AC ⊥ CE and ∠A : ∠B : ∠C = 3 : 2 : 1, find the value of ∠ECD.

In the given figure, AB || DE. Find ∠ACD.

Is the following statement true and false :

Sum of the three angles of a triangle is 180 .

Is the following statement true and false :

A triangle can have two right angles.

Is the following statement true and false :

All the angles of a triangle can be less than 60°

Is the following statement true and false :

All the angles of a triangle  can be greater than 60°.

Is the following statement true and false :

All the angles of a triangle can be equal to 60°.

Is the following statement true and false :

A triangle can have two obtuse angles.

Is the following statement true and false :

A triangle can have at most one obtuse angles.

Is the following statement true and false :

If one angle of a triangle is obtuse, then it cannot be a right angled triangle.

Is the following statement true and false :

An exterior angle of a triangle is less than either of its interior opposite angles.

Is the following statement true and false :

An exterior angle of a triangle is equal to the sum of the two interior opposite angles.