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### We found 23 resources with the keyterm area of a circle

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How Computers Work: What Makes a Computer,...

Other Resource Types
(23)

Lesson Planet: Curated OER

#### Area of a Circle

A second installment in a series on circles, this production demonstrates the process of finding the area of a circle. As an introductory tool, it is effective. However, it does not explain the reasoning behind the formula because that...

Lesson Planet: Curated OER

#### Penn Museum: China Gallery

Invite your learners to take a closer look at the art and mathematical function of dome buildings as designed by the ancient Romans. In the next segment of this attractive worksheet set, your young historians will then learn about...

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#### The Circumference of a Circle and the Area of the Region it Encloses

Bring your math class around with this task. Learners simply identify parts of a given circle, compute its radius, and estimate the circumference and area. It is a strong scaffolding exercise in preparation for applying the formulas for...

Lesson Planet: Curated OER

#### Measuring the Area of a Circle

When mathematical errors happen, part of the learning is to figure out how it affects the rest of your calculations. The activity has your mathematicians solving for the area of a circular pipe and taking into consideration any errors...

Lesson Planet: Curated OER

#### How Do You Find the Lateral and Surface Areas of a Cone?

The lateral surface area of a cone. Hmmm, what does that mean? Oh, it means the part you see if the cone was sitting on a flat surface, so it does not include the base. But if you want to include the base then it would be finding the...

Lesson Planet: Curated OER

#### Eight Circles

We are used to finding the area of a circle by plugging the radius into an equation. Here, learners are required to go further to find multiple areas and calculate the difference. They must detect a pattern in order to figure out the...

Lesson Planet: Curated OER

#### What is the Formula for the Volume of a Cone?

All you need are a few values to find the the volume of a cone! Watch an informative math video that guides learners through the formula needed, as well as the relationship between the cone's volume and the volume of other...

Lesson Planet: Curated OER

#### How Do You Find the Volume of a Cylinder?

What is the formula to find the volume of a cylinder? Here's the formula - volume equals base times height, and the base of a cylinder is base equals pi times radius squared. If the is a given value for radius, and a given value for...

Lesson Planet: Curated OER

#### How Do You Find the Area of a Circle if You Know the Radius?

There are basically two things you need to know to find the area of a circle. First, you need to use the correct formula. Second, you have to know the value of the radius. If you know these two things then all you have to do is plug the...

Lesson Planet: Curated OER

#### Circumference and Area of Circles (B)

In this geometry learning exercise, students calculate the area and circumference of 12 circles in which either the diameter or radius is shown. There are no formulas given on this page.

Lesson Planet: Curated OER

#### Circumference and Area of Circles (A)

In this geometry worksheet, students solve 12 problems in which the area and circumference of a circle is calculated to the tenth place. No formulas are given on this page.

Lesson Planet: Curated OER

#### Volume of Cylinders and Cones

Line drawings of a circle, a cylinder, and a cone at the top of the page contain the formulae for area and volume of each shape. Learners complete the missing information in a chart that lists diameter, radius, height, and area and...

Lesson Planet: Curated OER

#### Area of Circle Worksheet

Given the diameter of a circle, learners are charged with finding its area. They halve the diameter, square it, and multiply by pi. Five problems provide basic practice.

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#### Area of a Circle When Radius is Given

Five problems provide practice for learners to find the area of a circle given the distance of the radius. Answers on the key use pi as a variable and do not include fully computed numeric answers. To reinforce basic multiplication facts...

Lesson Planet: Curated OER

#### ExplorA-Pond: 6th Grade Area and Random Number Tables

Sixth graders estimate surface area of a pond using a random number table.

Lesson Planet: Curated OER

#### Area of a Circle Worksheet

In this geometry worksheet, 6th graders identify the area of the four given circles by using the given diameters. There is a space for students to show their work.

Lesson Planet: Curated OER

#### The Area of a Circle

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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#### Area of Circle Worksheets

For this geometry worksheet, 10th graders calculate the area of circle give either the radius or the diameter. The one page interactive worksheet contains ten questions. Answers and hints are included.

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#### The Capacity of Planets

Tenth graders change numbers written in standard form to scientific notation. In this scientific notation activity, 10th graders use given diameters and distances from the sun for each planet in our solar system. After rewriting each of...

Lesson Planet: Curated OER

#### Radius, Diameter and Circumference

In this circle worksheet, students use a drawing of a circle. The diameter is given. Students find the radius, circumference and area of the circle. On the second problem, students are shown a circle with a hole inside it. They compute...

Lesson Planet: Curated OER

#### Geometric Probablitiy: Spinners and Dartboards

Sstudents explore and analyze the properties of geometric areas. In this geometry lesson plan, sstudents use technology to simulate spinners and dartboards in order to fing areas of circles and sectors of circles and compare and...

Lesson Planet: Curated OER

#### Circumference and Area of Circles

In this math worksheet, students learn to calculate the area and circumference of a circle. Students answer 4 word problems after reading the information and studying the examples.

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#### How Big is a Molecule?

Students estimate the size of a molecule of oleic acid. They conduct an experiment using chalk dust, water, and oleic acid, solve various calculations, and answer discussion questions.