Radius and Diameter

Front

What is the formula to calculate the diameter of a circle if the radius is known?

Back

Diameter = 2 * Radius

Front

What is the radius of a circle?

Back

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

Front

What is the diameter of a circle?

Back

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

Front

If the radius of a circle is 8 cm, what is the diameter?

Back

16 cm

Front

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

Back

10 cm

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 circumference called the radius or diameter?

Back

Diameter

Front

What is the relationship between radius and diameter?

Back

Diameter = 2 * Radius

Front

If a circle has a radius of 14 cm, what is its diameter?

Back

28 cm

Front

What is the radius of a circle with a diameter of 38 cm?

Back

19 cm