8-5 Lesson Quiz (Circumference)

Which of the following statements is true? Select all that apply!

• The radius of a circle is twice its diameter.

• To find the diameter of a circle, divide its circumference by π.

• The circumference of a circle is greater than its diameter.

• The circumference of a circle is twice its radius.

• To find the diameter of a circle, multiply its radius by two.

What is the circumference, in centimeters, of the circle? Use 3.14 for π.

• 75.36 centimeters

• 7.64 centimeters

• 150.72 centimeters

• 37.68 centimeters

What is the diameter of a circle with a circumference of 84.78 inches? Use 3.14 for π.

• 54 inches

• 266.21 inches

• 27 inches

• 13.5 inches

What is the difference between the circumference of the outer circle and the circumference of the inner circle?

• 7 meters

• 21.98 meters

• 43.96 meters

• 6.28 meters

• 12.56 meters

A mountain bike tire completes 20 revolutions and travels 136 feet. Rounded to the nearest INCH, what is the diameter of the bike's tire? (HINT: 1 foot = 12 inches)

• 26 inches

• 81.6 inches

• 6.8 inches

• 2 inches

The radius of the circle is 9 meters.  What is the circle's circumference?

• 9 meters
• 28.26 meters
• 56.52 meters
• 18 meters

Tags

CCSS.7.G.B.4

The distance across a circle through the center is called the_______________.

• radius
• circumference
• diameter
• area

Name the part shown in the given circle.

• Diameter

• Segment

• Circumference

• Radius

Tags

CCSS.HSG.C.A.2

What is the diameter?

• 8
• 16
• 10
• 4

Tags

CCSS.7.G.B.4

What is the radius?

• 18
• 72
• 38
• 14

Tags

CCSS.7.G.B.4