IM 2: Review Circles

The distance from any point on the outside of a circle to the center of the circle is called what?

• Diameter

• Circumference

• Area

• Radius

Tags

CCSS.HSG.CO.A.1

The distance across a circle through the center is called what?

• Area

• Diameter

• Circumference

• Radius

Tags

CCSS.HSG.C.A.2

What is the space that a circle covers called?

• Area

• Radius

• Circumference

• Diameter

Tags

CCSS.HSG.GMD.A.1

The distance around the outside of a circle is called what?

• Perimeter

• Area

• Circumference

• Diameter

Tags

CCSS.7.G.B.4

If the radius of a circle is 4 inches, what is the diameter?

• 2 inches

• 2 feet

• 4 inches

• 8 inches

Tags

CCSS.7.G.B.4

Which shows the ratio for pi? 

• circumference to diameter

• radius to circumference

• area to diameter

• area to radius

Tags

CCSS.7.G.B.4

If the radius of a circle is 4, what is the EXACT circumference in terms of  $\pi$  ?

• 8

•  $8\pi$  

•  $16\pi$  

•  $4\pi$  

A dog is tied to a fence post with a piece of rope that is 10 feet long. What is the exact area of the circle in which the dog can graze?

• $100\pi$ sq feet

• $20\pi$ sq feet

• $100$ sq feet

• $400\pi$ sq feet

Find the exact area if the diameter is 18.

• $18\pi$ sq un

• $81\pi$ sq un

• $81$ sq un

• $81\pi$ un

Which is true of a minor arc?

• It forms half a circle.
• It forms a whole circle.
• It measures greater than 180 degrees. 
• It measures less than 180 degrees.