Learn 9th grade math

Explore all the essential math subjects for 9th grade. From basic arithmetic to geometry, our comprehensive resources will help you learn each topic. Start your 9th grade math journey today with detailed lessons and practice exercise.

Exponents and Exponent rules

The exponent of a power Basis of a power Exponents of Negative Numbers Zero Exponent Rule Negative Exponents Exponents - Special Cases Prime Factorization with Exponents

Rules of Exponentiation

Properties of Exponents Power of a Power Division of Exponents with the Same Base Multiplying Exponents with the Same Base Exponent of a Multiplication Power of a Quotient Combining Powers and Roots

Square

From Parallelogram to Square Area of a square

Rectangle

Congruent Rectangles The perimeter of the rectangle Calculating the Area of a Rectangle From a Parallelogram to a Rectangle From a Quadrilateral to a Rectangle

Kite

Area of a Deltoid (Kite)

Rhombus, kite, or diamond?

The Area of a Rhombus From Parallelogram to Rhombus Lines of Symmetry in a Rhombus Diagonals of a Rhombus

Parallelogram

From the Quadrilateral to the Parallelogram Rotational Symmetry in Parallelograms Identifying a Parallelogram Perimeter of a Parallelogram The area of a parallelogram: what is it and how is it calculated?

Rotational Symmetry in Parallelograms

From the Quadrilateral to the Parallelogram

Trapezoids

Isosceles Trapezoid Types of Trapezoids Perimeter of a trapezoid Area of a trapezoid Diagonals of an isosceles trapezoid Symmetry in Trapezoids

Parabola

Vertex of a parabola Positive and Negative intervals of a Quadratic Function Increasing and Decreasing Intervals of a Parabola Finding the Zeros of a Parabola Plotting the Quadratic Function Using Parameters a, b and c Symmetry in a parabola

Congruent Triangles

Congruence of Right Triangles (using the Pythagorean Theorem) Side, Side, Angle Congruence Criterion: Side, Side, Side Congruence Criterion: Angle, Side, Angle Congruence Criterion: Side, Angle, Side

Families of Parabolas

Family of Parabolas y=(x-p)²+k (combination of horizontal and vertical shifts) Family of Parabolas y=(x-p)² Family of Parabolas y=x²+c: Vertical Shift The functions y=x²

Midsegment

Midsegment of a trapezoid Midsegment of a triangle

Elements of the circumference

How is the radius calculated using its circumference? Radius The Center of a Circle The Circumference of a Circle Tangent to a circle Inscribed angle in a circle Perpendicular to a chord from the center of a circle Arcs in a Circle Central Angle in a Circle Chords of a Circle Distance from a chord to the center of a circle Area of a circle Pi Diameter Circle

Circle

How is the radius calculated using its circumference? Radius The Center of a Circle The Circumference of a Circle Tangent to a circle Inscribed angle in a circle Perpendicular to a chord from the center of a circle Arcs in a Circle Central Angle in a Circle Chords of a Circle Distance from a chord to the center of a circle Area of a circle Pi Diameter