Class 9 Mathematics questions for CBSE

In a triangle, if one angle is greater than 90 degrees, the triangle is classified as acute.

The Factor Theorem states that if f(a) = 0 for a polynomial f(x), then (x - a) is a factor of f(x).

Two triangles are congruent if they have two sides and the included angle equal.

The sum of the angles in any triangle is always equal to 180 degrees.

According to the laws of exponents, a^m × a^n = a^(m+n) holds for all real numbers a.

The Cartesian system allows for the graphical representation of points using ordered pairs.

In a parallelogram, the mid-point theorem states that the line segment joining the midpoints of two sides is parallel to the third side.

Euclid's definitions provide the foundational terms for geometric concepts.

An axiom is a statement that is universally accepted without proof.

The solution of a linear equation in two variables represents a point on the Cartesian plane.

List the criteria for congruence of triangles and explain one briefly.

Calculate the sum of the interior angles of a quadrilateral.

Write a linear equation in two variables representing the relationship between x and y such that y = 5 when x = 1.

Graph the linear equation y = 2x + 3 and identify the y-intercept.

Plot the point (4, -3) on a Cartesian plane.

Identify the degree of the polynomial 3x^4 - 5x^3 + 2x - 1.

Use the Factor Theorem to show that (x-2) is a factor of the polynomial x^2 - 4.

State one equivalent version of Euclid's Fifth Postulate.

Define intersecting lines and give an example.

Find the rational number between 2 and 3.