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### We found 150 resources with the concept area of circles

Lesson Planet

#### Area of a Circle

Circle back and use the resource to review area. Young pupils see how to find the area of a circle given its radius or diameter. The instructive video also shows an example of how to find the radius given the area.

Lesson Planet

#### Pizza Doubler

Double the pizza? What a great deal! Young pizza enthusiasts investigate two different coupons, one that doubles the radius and one that doubles the sector angle of a slice. They determine which coupon is the better deal.

Lesson Planet

#### Geometry: Extended Performance Task Plan for Backyard Oasis

Backyards are made for relaxing ... not doing math! Young mathematicians design a backyard based on a list of client specifications. They calculate areas, write equations for the path of a fountain, and research costs for a garden.

Lesson Planet

#### Packers' Puzzle

How many oranges can fit in a box? Apply the area and volume formulas learned in middle school to investigate how different arrangements of packing oranges can lead to vastly different answers.

Lesson Planet

#### Area of Circles

Using a basic formula one can find the area of a circle. Duane walks learners through the steps needed to determine the missing variable, plug in the known variable, and solve to find the area of a circle. He provides two different...

Lesson Planet

#### 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

#### 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

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

In this geometry worksheet, 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

#### 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

#### 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

#### Areas of Polygons, Arc Length, and Area Sectors

Math scholars explore the concept of area. In this area lesson, learners find the area of cardboard squares and circles that they have created. They use their cardboard constructions to find midpoint, area of sectors, arc length and...

Lesson Planet

#### 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.

Lesson Planet

#### 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

#### Quiz: Area of a Circle

Geometers test their mastery at finding the area of a circle with 10 basic problems. Circle diagrams show line segments, points, and diameter. Distance of radii are given. They use pi as 3.14 to calculate the area. No answer key is...

Lesson Planet

#### Finding Circumference and Area of a Circle

Young geometers explore the concept of circumference and area of circles. They discuss what information is needed to find circumference and area. The resource employs several instructional methods: Frayer Model for Vocabulary, literature...

Lesson Planet

#### Area and Circumference of Circles

Learners view two PowerPoints and practice computing the area and circumference of circles. They must use given formulas to make their computations. The lesson includes links to both PowerPoints as well as a worksheet (with answer key).

Lesson Planet

#### Calculate Area Using Pi

Geometers find the area of four circles given their circumferences. Circumference is presented in the form of "numeral (diameter) x pi"; the answer key shows solutions as "numeral (radius squared) x pi," so computation is limited to...

Lesson Planet

#### Area of a Circle: Diversified Practice

Let your geometers use a calculator, or not, to complete a activity that provides eight practice opportunities for finding the area of circles and shapes that include circles or parts of circles. Two of the problems provide unique...

Lesson Planet

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

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

Lesson Planet

#### Lesson 9-3 Practice B: Composite Figures

In this composite figures worksheet, high schoolers solve 11 short answer problems. Students find the area of figures composed of various polygons. High schoolers find the area of each figure given a sketch of the figure with various...

Lesson Planet

#### Measuring Circles

Students discover the area of circles. In this circles lesson, students work to find the circumference and diameter of a circle. Students compare the relation of the area of a circle to a square.

Lesson Planet

#### 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

#### Calculate the Area

In this area of a circle worksheet, 6th graders must calculate the area of 5 circles given either the radius or diameter. Students must write the area on the line provided and a blank space is provided for students to work out the...

Lesson Planet

#### Whether to Water the Wheat

In this area of circles worksheet, students compare the area of fields watered by pivot lines. One field has one long line, the second has 5 smaller pivot lines. Charts are included to assist students in deciding which set up makes the...