Geometry Basics Flashcard

Front

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

Back

Front

What is a point in geometry?

Back

A location with no size or shape.

Front

What is the definition of perpendicular lines?

Back

Two lines that intersect at a 90° angle.

Front

What is the formula used to find the midpoint between two endpoints?

Back

Front

What are two angles with measures that sum to 180° called?

Back

Supplementary.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the definition of parallel lines?

Back

Two lines that never intersect and are always the same distance apart.

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2πr, where r is the radius.

Front

What is the definition of a triangle?

Back

A polygon with three edges and three vertices.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.