Circles!

Front

What is the definition of radius?

Back

Distance from the center to any point on the circle.

Front

What is the formula for circumference of a circle given the diameter?

Back

C = π d

Front

What is the diameter of a circle if the radius is 2 ft?

Back

4 ft

Front

What is the diameter of a circle if the radius is 7 m?

Back

14 m

Front

Which segment is a radius in a circle?

Back

The segment that connects the center of the circle to any point on the circle.

Front

What is the definition of diameter?

Back

Distance across the circle through the center.

Front

What is the relationship between radius and diameter?

Back

Diameter is twice the radius.

Front

What is the formula for the area of a circle?

Back

A = π r²

Front

If the circumference of a circle is 31.4 m, what is the diameter?

Back

10 m (using C = π d)