Geometry
Coordinate Geometry
Coordinate geometry uses a coordinate plane to describe geometric shapes algebraically.
Key Formulas
Distance
Distance between two points.
Midpoint
Point exactly between two points.
Key Concepts
Distance formulaMidpoint formulaSlopeEquations of lines
Worked Examples
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Angles
An angle is formed by two rays sharing a common endpoint. Angles are measured in degrees or radians.
Triangles
A triangle is a polygon with three sides. The angles sum to 180°.
Circles
A circle is the set of points equidistant from a center point. It is defined by its radius or diameter.
Area
Area measures the amount of space inside a two-dimensional shape.