Circles: Parts, Circumference, and Area
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Circles: Parts, Circumference, and Area
Circles worksheet for Grades 6 and 7: name a radius, a diameter, and a chord by their letters, find two areas and a semicircle’s perimeter with 3.14 for π, then π as circumference divided by diameter, a circumference, and an area in context. With an answer key.
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- Pages
- 1
- Last updated
- Time
- About 15 minutes
- Answer key
- Included
- Goes with
- Circumference of a Circle, Area of a Circle
- Printing
- Black and white
- Related curriculum
-
Name the radius and diameter, find the circumference and area of a circle from either one, work back from the circumference or area, and find the area of half and quarter circles.
Reviewed by Mr. Daniel Carter, Teacher. How we check worksheets
How to use this sheet
- Have the child label the radius and the diameter on each circle before using a formula.
- Write the formula with the numbers in it on its own line before calculating.
- Estimate with π as about 3 first, and check the answer is close.
Common mistakes
- Using the diameter in the area formula. Area uses the radius: halve the diameter first.
- Squaring the wrong thing, so π × r² is worked as (π × r)².
- Mixing up circumference and area. Circumference is the distance around; area is the space inside.
