Lesson 21 Study Guide - Circles

What is the distance around a circle?

• diameter

• radius

• circumference

• area

What does this symbol represent?

• 3.41

• 3.14

• 4.31

• 1.34

Tags

CCSS.HSG.GMD.A.1

What is a straight line from the center to the edge of a circle?

• radius

• diameter

• circumference

• area

The number of square units inside a circle is called what?

• circumference

• area

• radius

• diameter

If my radius is 24 ft, what is my diameter?

• 12 feet

• 48 feet

• 75.36 feet

• 37.68

Tags

CCSS.7.G.B.4

Isaac purchases a new basketball hoop for his playroom. The diameter of the hoop is 18 inches. What is the circumference of the hoop?

• 9 inches

• 254.34 inches

• 113.04 inches

• 56.52 inches

Tags

CCSS.7.G.B.4

A bicycle tire has a radius of 13.5 inches. What is the circumference of this tire?

• 84.78 in

• 42.39 in

• 27 in

• 572.27 in

Tags

CCSS.7.G.B.4

Does this picture show the diameter or radius of a circle?

• radius

• diameter

• circumference

• area

Tags

CCSS.HSG.C.A.2

A farmer grows potatoes on a circular plot of land that has a radius of 40 meters. Each potato plant requires 3 square meters of soil. What is the maximum number of potato plants the farmer can grow?

• 5024

• 120

• 41

• 1674

Tags

CCSS.7.G.B.4

There are 50 steps from one side of a garden to the other side going through the center. How many steps would it take to walk around the entire garden?

• 157 steps

• 314 steps

• 100 steps

• 1962.5 steps

Tags

CCSS.3.MD.D.8