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267 reviewed resources for radius square

Videos (Over 2 Million Educational Videos Available)
Defining Gravity Video
Defining Gravity
Population Genetics Video
Population Genetics
The Secret World of Animal Sleep 101 Sleepless on the Savanna Video
The Secret World of Animal Sleep 101...
Other Resource Types ( 267 )
12 Items in Collection
Lesson Planet

Math Antics Geometry Video Lessons

For Teachers 4th - 8th Standards
The point of this collection of 12 videos is to introduce learners to three basic parts of geometry—points, lines, and planes. The presenter provides definitions, shows how to classify shapes, provides examples, and shows how to use...
Lesson Planet

Mathematics Assessment Project: Tests for College & Career Readiness - High School

For Teachers 9th - 12th
A collection of six tests are designed to assess the College and Career Readiness of high school algebra I, algebra II, geometry, and statics and probability learners. Each assessment includes the test form and scoring and comes in 40,...
Lesson Planet

Complete the Square for Center-Radius 2

For Students 9th - 12th Standards
Squares and circles go hand in hand. Scholars determine the center and radius of a circle given an equation in standard form. The problem involves an equation with coefficients greater than one.
1 In 1 Collection

Construct a Square and a Nine-Point Circle

For Students 9th - 10th Standards
Anyone can draw a square, but can you CONSTRUCT a square? Here is a resource that challenges math scholars to create steps to finish their own construction. They test their ability to read and follow directions to complete a construction...
1 In 1 Collection

Square Roots

For Students 8th Standards
Investigate the relationship between irrational roots and a number line with a resource that asks learners to put together a number line using radical intervals rather than integers. A great progression, they build on their understanding...
Lesson Planet

What is the Formula for the Area of a Circle?

For Teachers 6th - 10th
Cut up a circle and make a parallelogram! What? No way! Yes way! Watch the instructor illustrate just how to cut up the circle and get that parallelogram to then get the formula for the area of a circle. It really works! Base,...
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Inscribing a Square in a Circle

For Teachers 9th - 11th Standards
Inscribing a square in a circle brings up a number of interesting geometry topics including triangle congruence and how to prove a quadrilateral is a square. This activity is followed up by finding the area of the square and determining...
Lesson Planet

Find the Radius of the Smallest Circle that Contains the Figure

For Students 9th - 10th
In this geometry worksheet, students calculate the radius of the smallest possible circle that contains the figure provided.  The complete solution is provided by clicking on the "show solution" button found below the problem.
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How Do You Find the Volume of a Cone?

For Teachers 6th - 10th
The formula to find the volume of a cone is volume equals one-third times the base times the height. The base can be found by using the formula to find the area of a circle: base equals pi times radius squared. So it seems that the area...
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How Do You Find the Volume of a Cylinder?

For Teachers 6th - 10th
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

Radius of a Cylinder

For Teachers 8th - 12th Standards
Here is a multiple choice question that would make a good assessment question. Algebra young scholars are to look at the structure of the formula for a given radius of a cylinder and find the resulting radius when the height of the...
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Don't Be a Square

For Teachers 4th - 6th
Learners analyze the relationship between radius and diameter.  Students read Sir Cumference and the First Round Table then take measurements of circular items from around the room.  Learners compute the radius, diameter and...
Lesson Planet

Volume of Cylinders and Cones

For Students 7th - 8th
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

Area of a Circle - ELL 20.7

For Students 7th
Seventh graders use diagrams of three sizes of circles to solve each radius, diameter, and area. They solve ten problems.
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Complete the Square for Center-Radius

For Students 9th - 12th Standards
No need to circle back to the resource; it's available now. Scholars take an equation of a circle given in standard form and find the circle's center and radius. An application of competing the square comes to light.
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Circles - Problem Solving 16.7

For Students 5th - 8th
In this circles word problem worksheet, students solve problems using quarter turns, radius, and diameter. Students solve four word problems.
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Circles: Geometry Review Worksheet

For Students 10th Standards
Tenth graders solve and complete 14 different geometry problems. First, they find the area and circumference of a circle with a given radius. Then, they find the area between a circle and an inscribed equilateral triangle given the...
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Parts of a Circle

For Teachers 3rd - 5th
Students explore circles. In this shapes and geometry lesson plan, students cut a circle from construction paper, then identify and label the center point, radius, diameter, and circumference. Students form a large circle and its parts...
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Discovering Relationships Between Side Length and Area

For Students 9th - 12th Standards
Consider the relationship between side length and area as an input-output function. Scholars create input-output tables for the area of squares to determine an equation in the first installment of a three-part unit. Ditto for the area of...
Lesson Planet

Exploring Circles

For Students 10th
In this exploring circles worksheet, 10th graders solve 12 different types of problems related to measuring circles in geometry. First, they refer to the figure on the sheet to name the center point, the three radii of the circle, the...
1 In 1 Collection

Recognizing Equations of Circles

For Teachers 9th - 12th Standards
What does completing the square have to do with circles? Math pupils use completing the square and other algebraic techniques to rewrite equations of circles in center-radius form. They then analyze equations of the form x^2 + y^2 + Ax +...
Lesson Planet

Circle Reasoning

For Students 9th - 12th Standards
Derive the equation of a circle using the Pythagorean Theorem. Pupils then use the equation to graph circles on a coordinate plane. Their final activity provides information about a circle such as an equation, center, radius, or two...
Lesson Planet

Circle Problems - Radius, Diameter, Circumference and Area

For Students 9th - 12th
In this online math worksheet, students determine the radius, circumference, diameter and area of circles. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A...
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Equations of Circles: The Sea of Happiness

For Students 11th - Higher Ed Standards
Map this! Help your young mathematicians draw a circular island on a map. Given specifics of the location and size of an island on a map, pupils transform a circle to meet the given requirements. They then determine the location of the...