Circles- Radius & Diameter

Front

What is the definition of a radius?

Back

The radius is the distance from the center of a circle to any point on its circumference.

Front

What is the definition of a diameter?

Back

The diameter is the distance across a circle through its center, equal to twice the radius.

Front

If the radius of a circle is 5 inches, what is the diameter?

Back

10 inches

Front

If the diameter of a circle is 14 inches, what is the radius?

Back

7 inches

Front

What is the relationship between radius and diameter?

Back

The diameter is always twice the length of the radius.

Front

Is the line segment from the center to the edge of the circle called the radius or diameter?

Back

Radius

Front

Is the line segment that passes through the center and connects two points on the circle called the radius or diameter?

Back

Diameter

Front

If a circle has a radius of 3 feet, what is its diameter?

Back

6 feet

Front

If a circle has a diameter of 20 cm, what is its radius?

Back

10 cm

Front

What is the formula to find the diameter if the radius is known?

Back

Diameter = 2 x Radius