Measuring Circles

Front

What is the formula to calculate the circumference of a circle?

Back

Front

What is the diameter of a circle?

Back

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

Front

What is the radius of a circle?

Back

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

Front

How do you find the area of a circle?

Back

Front

If the diameter of a circle is 6 meters, what is the radius?

Back

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the length of the radius: d = 2r.

Front

What is the approximate value of π?

Back

The approximate value of π (pi) is 3.14.

Front

If a circle has a radius of 5 meters, what is its area?

Back

Front

What is the circumference of a circle with a diameter of 10 meters?

Back

Front

What does the term 'circumference' refer to?

Back

Circumference refers to the distance around the edge of a circle.