Circumference and Area of Circles

Front

What is the formula for the area of a circle?

Back

Front

What is the formula for the circumference of a circle?

Back

Front

What is the value of π (pi) approximately?

Back

π (pi) is approximately equal to 3.14.

Front

If the radius of a circle is 7 cm, what is the area?

Back

Front

If the diameter of a circle is 10 m, what is the circumference?

Back

Front

What is the relationship between radius and diameter?

Back

The diameter (d) of a circle is twice the radius (r): d = 2r.

Front

How do you convert diameter to radius?

Back

Front

What is the area of a circle with a radius of 5 inches?

Back

Front

What is the circumference of a circle with a radius of 3 feet?

Back

Front

If a circle has an area of 50 cm², what is the radius?

Back