CIRCUMFERENCE+AREA OF A CIRCLE

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 formula for the area of a circle?

Back

Front

What does the area of a circle represent?

Back

The area of a circle represents the space inside the circle.

Front

What is the diameter of a circle?

Back

The diameter is the distance across the circle, passing through the center, and is twice the radius.

Front

What is the formula for the circumference of a circle?

Back

Front

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

Back

The diameter is 24 cm, since diameter = 2 × radius.

Front

If the radius of a circle is 6 cm, what is the area?

Back

Front

What is the value of π (pi) used in calculations?

Back

The value of π (pi) is approximately 3.14.

Front

Which segment is not a radius in a circle?

Back

A segment that does not connect the center to the circumference is not a radius.

Front

How do you find the area of a circle if you know the diameter?

Back