Math Goodies is a free math help portal for students, teachers, and parents.
Free Math
Newsletter
 
 
Interactive Math Goodies Software

Buy Math Goodies Software


Challenge Exercises:
Circumference and Area
Unit 2 > Lesson 5 of 6

Directions: Read each question below. Click once in an ANSWER BOX and type in your answer; then click ENTER. After you click ENTER, a message will appear in the RESULTS BOX to indicate whether your answer is correct or incorrect. To start over, click CLEAR. Use Pi = 3.14 to calculate your answers.

1. A dinner plate has a radius of 6 centimeters. What is the area?
ANSWER BOX: cm2

RESULTS BOX:


2. The distance around the wheel of a truck is 9.42 feet. What is the diameter of the wheel?
ANSWER BOX: ft

RESULTS BOX:


3. A lawn sprinkler sprays water 5 feet in every direction as it rotates. What is the area of the sprinkled lawn?
ANSWER BOX: ft2

RESULTS BOX:


4. What is the circumference of a 12-inch pizza?
ANSWER BOX: in

RESULTS BOX:


5. A dog is tied to a wooden stake in a backyard. His leash is 3 meters long and he runs around in circles pulling the leash as far as it can go. How much area does the dog have to run around in?
ANSWER BOX: m2

RESULTS BOX:


6. The distance around a carousel is 21.98 yards. What is the radius?
ANSWER BOX: yd

RESULTS BOX:


7. A storm is expected to hit 7 miles in every direction from a small town. What is the area that the storm will affect?
ANSWER BOX: mi2

RESULTS BOX:


8. An asteroid hit the earth and created a huge round crater. Scientists measured the distance around the crater as 78.5 miles. What is the diameter of the crater?
ANSWER BOX: mi

RESULTS BOX:


9. A semi-circle shaped rug has a diameter of 2 feet. What is the area of the rug?
ANSWER BOX: ft2

RESULTS BOX:


10. A spinner has 6 sectors, half of which are red and half of which are black. If the radius of the spinner is 3 inches, what is the area of the red sectors?
ANSWER BOX: in2

RESULTS BOX:



Circumference & Area Lessons
Geometry and the Circle
Circumference of a Circle
Area of a Circle
Practice Exercises
Challenge Exercises
Solutions

Related Activities
Circle Crosswords
Circle Solver
Circumference and String
Geometry and a Shoebox
Geometry Worksheet Generator
Pre-Made Worksheets

About Us | Contact Us | Advertise with Us | Facebook | Blog | Recommend This Page




Copyright © 1998-2014 Mrs. Glosser's Math Goodies. All Rights Reserved.

A Hotchalk/Glam Partner Site - Last Modified 14 Apr 2014