Pop Flashcard Geometry

Front

What is the name of a shape that has a center point, a radius, and a diameter?

Back

Circle

Front

What is the distance from the center of a circle to any point on its circumference called?

Back

Radius

Front

What is the distance across a circle through its center called?

Back

Diameter

Front

What is the formula for the circumference of a circle?

Back

C = 2πr or C = πd

Front

What is the area of a circle?

Back

A = πr²

Front

What do you call a polygon with four sides?

Back

Quadrilateral

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees

Front

What is the Pythagorean theorem?

Back

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

Front

What is a right angle?

Back

An angle that measures 90 degrees.

Front

What is the name of a triangle with all sides of different lengths?

Back

Scalene triangle