Circle Introduction - 1

What is QR called?

• Radius

• Diameter

• Circumference

• Area of the Circle

If the radius of this circle is 9.5 inches, what is its Diameter?

• 19 inches

• 9.5 inches

• 4.75 inches

• 83.5 inches

If QR is 7.2 meters, what is the Diameter of this circle?

• 14.4 meters

• 7.2 meters

• 3.6 meters

• 52 meters

The Diameter of this circle is 23.4 miles. What is the measurement of the radius?

• 11.7 miles

• 11.7 inches

• 46.8 miles

• 23.4 miles

What is the blue colored part of this circle called?

• Circumference

• Diameter

• Radius

• Area

If you use a rope to make a circle, the length of the rope will be the ....

• Circumference

• Radius

• Diameter

If you draw line through the center of the circle, to its edges, that can be called its ...

• Radius

• Diameter

• Circumference

The red arrows in this picture shows the...

• Circumference

• Radius

• Diameter

A line that starts from the center of a circle and ends at the edge is called ...

• Radius

• Diameter

• Circumference

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

• 38 inches

• 9.5 inches

• 59.66 inches

• 119.32 inches