Geometry Terms Flashcard

Front

The formula used to find the distance between two points on a coordinate plane

Back

Distance Formula: d = √((x2 - x1)² + (y2 - y1)²)

Front

An angle with a degree measure of 180 degrees

Back

Straight Angle: An angle that forms a straight line.

Front

Two lines that never intersect

Back

Parallel Lines: Lines that are always the same distance apart.

Front

An angle with a degree measure greater than 90 degrees

Back

Obtuse Angle: An angle that is larger than a right angle.

Front

If two segments have the same length, then they are

Back

Congruent Segments: Segments that are equal in length.

Front

A polygon with four sides

Back

Quadrilateral: A four-sided figure.

Front

The point where two lines intersect

Back

Vertex: The common endpoint of two rays or lines.

Front

A line that has a starting point but no endpoint

Back

Ray: A part of a line that starts at a point and extends infinitely in one direction.

Front

A closed figure formed by three or more line segments

Back

Polygon: A multi-sided figure.

Front

The longest side of a right triangle, opposite the right angle

Back

Hypotenuse: The side opposite the right angle in a right triangle.