Geometry Practice

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

• 38 inches
• 9.5 inches
• 59.66 inches
• 119.32 inches

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

• 20ft
• 5ft
• 31.4ft
• 62.8ft

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.
• The measurement around the circle
• The measurement from and edge of the circle to another edge through the center
• A line perpendicular to the diameter of the circle

What is the formula for finding the circumstance for a circle with just the radius?

•  2*π*r
• 1/2 b*h
• a+b/2*h
• I do not know

What is the formula for finding the circumstance of a circle with just the diameter?

•  π*d
• b*h
• l*w*h
• I do not know

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

• Radius
• Diameter

Jayne has a very large circular lollipop that has a circumference of 25.12 inches. What would the diameter of Jayne’s lollipop be? Use π = 3.14.

• 4 in.
• 8 in.
• 12 in.
• 16 in.

The radius is 8 inches.  What is the circumference?

• 50.24 inches
• 25.12 inches
• 12.56 inches
• 200.96 inches

In the following image what does A represent?

• Face
• Vertex
• Edge

In the following image what does C represent?

• Face
• Vertex
• Edge