Circle: Word Problem Test

Front

What is the circumference of a circle?

Back

The circumference of a circle is the distance around it, calculated using the formula C = 2πr, where r is the radius.

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 convert centimeters to inches?

Back

To convert centimeters to inches, divide the number of centimeters by 2.54.

Front

How do you convert feet to centimeters?

Back

To convert feet to centimeters, multiply the number of feet by 30.48.

Front

What is the area of a circle?

Back

The area of a circle is the space contained within it, calculated using the formula A = πr², where r is the radius.

Front

What is the formula for the circumference of a circle?

Back

The formula for the circumference of a circle is C = 2πr or C = πd, where d is the diameter.

Front

What unit of measurement is used for the circumference of a circle?

Back

Circumference can be measured in units such as centimeters (cm), meters (m), feet (ft), or inches (in).

Front

What is the relationship between diameter and radius?

Back

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

Front

How do you find the radius if you know the circumference?

Back

To find the radius from the circumference, use the formula r = C/(2π).