Perimeter

What is the radius measurement?

(a)  

• 12 in
• 24 in
• 6 in

A circle has a radius of 23 feet. What is the diameter of the circle?

• 23 feet

• 46 feet

• 1/2 feet

• none of the above

Determine the radius of the penny.

• 59.66 mm

• 9.5 mm

• 38 mm

• 119.32 mm

What is the radius of the cylinder?

• 16

• 10

• 6

• 5

What is the radius of a circle with a diameter of 67?

• 15
• 21.8
• 33.5

What is the measure of the diameter of the circle?

How do you feel about understanding

Identifying the diameter or radius of a circle

• ET: Exceeding Target: I can show my complete knowledge of this target and BEYOND!!

• AT: Achieving Target: I can show my complete knowledge of this target.

• PT: Progressing Toward Target: I can show my partial knowledge of this target

• NM: Not Met: I can't show my progress toward this target yet.

Find the diameter.

• 12.8

• 170.9

• 157

• 167

If given the diameter then ____

• Divide it by 2

• Multiply it by 2

• Add it by 2

• Subtract it by 2

diameter =

• radius x radius

• radius x 2