Unit 8 Geometry Vocab Flashcard

Front

What is the formula used to find the distance between two points on a coordinate plane?

Back

d = √[( x₂ - x₁)² + (y₂ - y₁)²]

Front

Line Segment

Back

A part of a line with two endpoints

Front

Midpoint

Back

A point that divides a segment into two congruent segments

Front

Vertices

Back

The point of intersection of two sides of a polygon. The point of intersection of three edges of a space figure.

Front

Parallel lines

Back

Lines in the same plane that never intersect

Front

Perimeter

Back

The distance around a figure

Front

Area

Back

The number of square units required to cover a surface

Front

Perpendicular lines

Back

Lines that intersect to form right angles

Front

Proof

Back

A logical argument that shows a statement is true

Front

Reciprocal

Back

The inverse of a fraction; when multiplied by the original fraction, it results in a product that equals one