Circles - Area, Circumference and Perimeter

Front

What is the formula for the circumference of a circle?

Back

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

If the radius of a circle is 4 inches, what is the diameter?

Back

The diameter of a circle is twice the radius. Therefore, if the radius is 4 inches, the diameter is 8 inches.

Front

What is the formula for the area of a circle?

Back

Front

What is the perimeter of a semi-circle?

Back

Front

What is the relationship between diameter and radius?

Back

Front

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

Back

Front

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

Back

Front

What is the circumference of a circle with a radius of 5 m?

Back

Front

What is the area of a circle with a radius of 3 inches?

Back