Parts of a Circle Review

Front

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

Back

Radius

Front

What is the longest chord of a circle that passes through the center called?

Back

Diameter

Front

What is the term for the distance around the circle?

Back

Circumference

Front

What is the area of a circle with a radius of r?

Back

Area = πr²

Front

If the diameter of a circle is 10 cm, what is the radius?

Back

Radius = 5 cm

Front

What do you call a line segment that connects two points on the circle?

Back

Chord

Front

What is the center of a circle?

Back

The point that is equidistant from all points on the circle.

Front

If a circle has a radius of 4 cm, what is its diameter?

Back

Diameter = 8 cm

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2πr or πd

Front

What is the relationship between radius and diameter?

Back

Diameter = 2 × Radius