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Worksheet
Math eBook

Circumference of a Circle

For Students 6th - 9th Standards
Save trees and practice calculating the circumference of circles with this online interactive task! Of course, if you want individuals to turn it in, you will still need to print copies. There are 20 problems to solve, all of which...
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Lesson Plan
Curated OER

The Area of a Circle

For Teachers 8th
Eighth graders find the circumference and diameter of several lids, show the relationship of the two measurements and derive the formula for finding the area of a circle. In this area of a circle lesson plan, 8th graders find...
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Lesson Plan
Curated OER

The Geometry of Circles

For Teachers 6th - 12th
Students review the parts of a circle, calculate the circumference and area of a circle, and create student-made tests on the geometry of circles using educational software.
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Worksheet
Curated OER

Equations of Circles

For Students 10th
In this equations of circles activity, 10th graders solve 10 different problems that include graphing different circles. First, they convert the equations into center-radius form given the coordinates of the center of the circle and its...
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Lesson Plan
Curated OER

Parachutes, Circles and Pi...Oh My!

For Teachers 6th - 7th
Students explore different size circles to discover the relationship between diameter and circumference. In this circles and Pi lesson, students construct simple parachutes using circle patterns of varying sizes. Students predict the...
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Lesson Plan
Curated OER

Circles

For Teachers 7th - 10th
Young scholars graph circles. In this graphing lesson students write equations for circles. Young scholars solve equations for circles and graph the results.
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Lesson Plan
Curated OER

Construction Circles

For Teachers 9th - 12th Standards
Pupils investigate the number of points needed to determine a unique circle in a plane. Using Cabri Jr., they apply construction techniques to generate a circle that passes through a given number of points.
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Lesson Plan
Curated OER

Perpendicular Segments in a Circle

For Teachers 9th - 12th Standards
High schoolers explore the concept of circles as they construct a circle using a program such as Cabri Jr. Learners construct a chord and a diameter that are perpendicular, then measure the bisected chord and notice that both sides of...
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Worksheet
Curated OER

Algebra II - Lesson 10-3: Circles

For Students 9th - 12th
In this equations of circles worksheet, students solve 4 short answer problems. Students find an equation of a circle given the center and radius.
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Worksheet
Curated OER

Easy Worksheet: Area and Circumference of Circles

For Students 9th - 12th
In this area and circumference of circles instructional activity, students solve 4 graphing problems. Students graph a circle given an endpoint and center. Students find the area or circumference of the circle they graphed.
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Worksheet
Math Mammoth

Circle

For Students 7th - 8th
For this circle worksheet, students find the area and circumference of circles and compare their size using percents. Students determine the are of composite figures made of circles and rectangles. This one-page worksheet contains six...
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Lesson Plan
Curated OER

Creating Circles

For Teachers 7th - 8th
Students make a circle graph. In this graphing lesson, the teacher conducts a class survey, then demonstrates how to make a pie graph. When students are comfortable with the material, they use a worksheet to create their own graph.
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Worksheet
Curated OER

Finding the Sum of the Perimeters of 3 Small Circles

For Students 9th - 10th
In this geometry worksheet, students find the sum of the perimeters of three small circles.  These small circles are tangent to each other and to a larger circle.  The centers of the small circles have their centers on the diameter of...
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Worksheet
Curated OER

Circles Terminology Multiple Choice

For Students 9th - 12th
In this circles activity, high schoolers solve 10 multiple choice problems. Students answer questions about diameter and chord relationships, tangent lines to a circle, circumference, the Pi relationship, etc.
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Worksheet
Curated OER

Circles

For Students 10th
For this circles worksheet, 10th graders solve 10 different problems that include determining the chords, secants, and tangents of circles shown. First, they determine 4 different line segments given a circle with secants and chords with...
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Worksheet
Curated OER

Circles - Word Problems

For Students 6th - 7th
In this geometry problem solving worksheet, students answer 8 words problems based on their knowledge of circles, circumference, radius, diameter, and perimeters. They show their work on the sheet between problems.
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Worksheet
Curated OER

Graphing and Properties of Circles

For Students 9th - 12th
In this circles worksheet, student solve 18 circles problems in graphing and short answer format.  Students find the equation of a circle given the center and radius and vice versa.  Students graph circles given their equation.
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Worksheet
Raytheon

Geometry: Circles

For Students 6th - 8th
For this geometric circumference worksheet, 8th graders calculate the circumference of each of the 18 circles. The remaining pages of the worksheet include formulas and lesson ideas on finding the circumference of circles.
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Lesson Plan
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Curated OER

Unit Circle

For Teachers 11th - 12th
In this Pre-Calculus worksheet, students solve problems involving angles and the unit circle.  The four page worksheet contains a combination of twenty multiple choice and free response problems.  Answers are provided. 
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Lesson Plan
Curated OER

Circumscribing a Circle About a Triangle

For Teachers 9th - 12th Standards
Pupils circumscribe a circle about a triangle. They construct a triangle using Cabri Jr and then circumscribe it. They then use knowledge of perpendicular bisectors and circumcenters to locate the center of the circle and then...
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Worksheet
Curated OER

Problem-Solving Application: Make a Circle Graph

For Students 5th - 6th
In this circle graphs activity, students analyze a data table about the activities in a day. Students then use this data to make a circle graph. Students answer 6 questions about the graph.
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Worksheet
Curated OER

Writing Equations of Circles

For Students 10th - 12th
In this writing equations worksheet, students examine given information and write the equation of a circle in standard form. This four-page worksheet contains 30 problems. Answers are provided on the last page.
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Worksheet
Curated OER

Chapter 8: Circles

For Students 9th - 12th
In this circles worksheet, high schoolers define and sketch 20 terms about circles. Students sketch radii, chords, diameters, secants, concentric circles, etc.
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Worksheet
Curated OER

Circles and Arcs, Circumference and Area Multiple Choice

For Students 9th - 12th
In this circles worksheet, students determine the circumference and area of circles.  They compute the length of an arc and find the radius.  This one-page worksheet contains 6 multiple-choice problems.  This on-line worksheet is...

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