M8-Circles and Cylinders Review

Circles and Cylinders Review

​Tomorrow is test day!!

Surface Area = 2Π(radius)(height) + Π(radius)² 

Volume = Π(radius)²(height)

​Cylinders

Circumference = Π × diameter

Circumference = Π × 2 × radius

Area = Π × (radius)²

​Circles

Formulas

​Circumference:

Find the circumference of a circle with a radius of 2.7 meters.

Express your answer in terms of π.

Circumference:

A pocket compass has a circumference of 9.42 inches. Find the approximate diameter of the compass. Use 3.14 for π. Round to the nearest hundredth if necessary.

You do:

Circumference:

A circular clock has a circumference of 27 inches. Find the approximate radius of the clock. Use 3.14 for π. Round to the nearest hundredth if necessary.  

Area:

​We do:

Circumference:

Find the circumference of a circle with a radius of 3.7 meters. Use 3.14 for π. Write your answer as a decimal rounded to the nearest hundredth.

Multiple Choice

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72

Multiple Choice

Find the area of the circle

• 56.52 in²

• 254.34 in²

• 1017.36 in²

• 113.04 in²

Multiple Choice

Steven purchases a bowl. The diameter of the bowl is 14 cm. What is the circumference of the bowl?

• 28 cm

• 43.96 cm

• 87.96 cm

• 7 cm

Multiple Choice

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

• 9 meters

• 28.26 meters

• 56.52 meters

• 18 meters

Multiple Choice

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.

Multiple Choice

Find the Total Surface area of the cylinder. 

• 62.8m

• 477.28 cm²

•  235.5 cm³

• 942 cm²

Multiple Choice

Find the surface area of the figure. Don't forget to divide the diameter by 2 to find the radius. Round to the nearest tenth.

• 628.3 m²

• 1445.1 m²

• 1245 m²

• 816.8 m²

Multiple Choice

Find the volume of the cylinder.

$$V=\pi r^2h$$

• 4239 $$m^3$$

• 1696 $$m^3$$

• 1130 $$m^3$$

• 565 $$m^3$$

Multiple Choice

Find the Volume of the Cylinder

• 1178 ft³

• 4712 ft³

• 7069 ft³

• 3534 ft³