Radius and diameter

Front

What is the diameter of a circle?

Back

The diameter is the distance across the circle through its center, and it is twice the length of the 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

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

Back

Front

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

Back

Front

What is the relationship between radius and diameter?

Back

The diameter is always twice the radius.

Front

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

Back

The diameter is 10.

Front

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

Back

The radius is 7.

Front

What is the formula for the circumference of a circle in terms of diameter?

Back

Front

What is the formula for the circumference of a circle in terms of radius?

Back

Front

What is the area of a circle in terms of radius?

Back