Math practice problems

Practice sample problems from math subjects including Geometry, Pre-Algebra, Algebra, Trigonometry, Statistics, Calculus, and more. Solve problems and review answers to get the math help you need.
Trigonometry

What is a unit circle?

A unit circle is a circle on the Cartesian plane with a radius of 1 unit and centered at the origin (0, 0). The unit circle is used in trig functions and angle measurement.
Algebra

How do I find the vertex of a parabola?

The vertex of a parabola is the point of intersection for the parabola and the axis of symmetry. Learn how to solve for the vertex of a parabola with example problem sets and answers.
Algebra

How do I use the quadratic formula?

What does the quadratic formula help us find? What is it exactly? The quadratic formula is an algebraic formula that allows you to find the x-intercepts of a quadratic equation.
Algebra

What is the distance formula?

The distance formula is used to find the distance between any two points on the coordinate plane. The distance formula is a variation of the Pythagorean Theorem.
Algebra

What is the area of a circle? What is the surface area of a cylinder?

How do you find the area of a circle and the surface area of a cylinder? Here's a step by step in solving for both.

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