*Circle Unit Practice Test - Intro

Last updated about 2 years ago
12 questions
You may use a calculator. https://www.desmos.com/scientific
1

A cereal bowl has a diameter of 25 cm. What is the radius of the cereal bowl?

Label your answer.

1

A cereal bowl has a circumference of 25 cm. What is the diameter of the cereal bowl?

Label your answer. Use 3.14 for π and round to the nearest hundredth.

1

Find the area of the circle shown below.

Label your answer. Use π = 3.14
(When you are not given units such as "cm" or "inches", just use "units" or "square units" as your label)

1

Find the circumference of the circle shown below.

Label your answer. Use π=3.14
(When you are not given units such as "cm" or "inches", just use "units" as your label)

1
*Find all missing measurements.
If r = 8 cm
then find
diameter = _______
Circumference = _______
Area = _______

No spaces, no labels.

Use 3.14 for π
1
*Find all missing measurements.
If d = 10 km
then find
radius = _______
Circumference = _______
Area = _______

No spaces, no labels.

Use 3.14 for π
1
Find all missing measurements.
If C = 28.26
then find
radius = _______
diameter = _______
Area = _______

No spaces, no labels. Use 3.14 for π.
1

True or false: There appears to be a proportional relationship between the height of the stack and the number of pennies.

1

Decide whether circumference or area would be needed to calculate it

  • The distance around a circular city
  • The total number of same sized tiles on a circular roof
  • The distance a unicycle wheel will go with one rotation
  • The amount of water it takes to just cover the bottom of a bucket
  • Circumference
  • Area
1

The figure is made from a part of a square and a part of a circle.
What is the total perimeter of this figure, to the nearest unit? (This means to the nearest whole number)
Show your work.

1

The figure is made from a part of a square and a part of a circle.
What is the total area of this figure, to the nearest square unit? (This means to the nearest whole number).
Show your work.

1

Bob buys two circular pizzas.

The small pizza has a 9-inch diameter.
The medium pizza has a 14-inch diameter.
How much greater, in square inches, is the area of the medium pizza than the small pizza?
Use π=3.14 Round your answer to the nearest tenth. Show your work.