Radius and Diameter Flashcard

Front

What is the radius of a circle with a diameter of 14 meters?

Back

7 meters

Front

Find the diameter of a circle with a radius of 8 centimeters.

Back

16 centimeters

Front

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

Back

10 units

Front

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

Back

radius = diameter / 2

Front

Identify the radius and diameter of a circle with a diameter of 10 cm.

Back

Radius: 5 cm, Diameter: 10 cm

Front

What is the relationship between radius and diameter?

Back

The diameter is twice the radius.

Front

How do you calculate the diameter if you know the radius?

Back

diameter = radius * 2

Front

What is the radius of a circle with a diameter of 30 cm?

Back

15 cm

Front

If the radius of a circle is 12 inches, what is its diameter?

Back

24 inches

Front

What is the formula for the diameter of a circle?

Back

diameter = 2 * radius