7.G.4

Front

What is the formula for the area of a circle?

Back

Front

Back

Front

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

Back

Front

What is the circumference of a circle?

Back

Front

If a circle has a diameter of 10 cm, what is its radius?

Back

The radius is half of the diameter, so the radius is 5 cm.

Front

What is the relationship between diameter and radius?

Back

Front

How do you calculate the area of a circle with a known radius?

Back

Front

What is the approximate circumference of a circle with a radius of 7 cm?

Back

Front

What is the formula for the circumference of a circle?

Back

Front

If the radius of a circle is doubled, how does the area change?

Back

If the radius is doubled, the area increases by a factor of four.