Circumference and Area of Circles

Front

The distance halfway across the circle is called the...

Back

radius

Front

Is the red line a radius or diameter of the circle?

Back

Radius

Front

Is the red line a radius or diameter of the circle?

Back

Diameter

Front

How can you calculate the radius if you are given the diameter? Options: Multiply the diameter by 2, Divide the diameter by 2, Add 2 to the diameter, Subtract 2 from the diameter

Back

Divide the diameter by 2

Front

If my diameter is 19 inches, what is my radius?

Back

9.5 inches

Front

What is the radius of this circle? Options: 18, 36, 9, 6

Back

9

Front

If my radius is 10ft, what is my diameter?

Back

20ft

Front

What is the diameter of this circle? Options: 3.5, 6.5, 6, 7

Back

7

Front

What is the diameter? Options: 5 in, 10 in, 3.14 in, 15.84 in

Back

10 in

Front

Circumference

Back

The distance around a circle.