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Mathway: Geometric Formulas
Resource provides geometric formulas for area, perimeter, surface area, and volume.
Purple Math
Purplemath: Geometric Formula Review
Need to freshen up on your geometric formulas? This explanation focuses on some basic formulas that should be committed to memory such as area, volume, perimeter, and more.
National Council of Teachers of Mathematics
The Math Forum: Find the Area of the Shape!
Try to figure out the area of this challenging shape. In order to view the images, you will need to use JavaSketchpad.
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Formulas
This tutorial will show you how using formulas can help you solve problems. Include formulas for various geometric shapes and steps showing how to use them.
Texas Instruments
Texas Instruments: From Here to There Applications of the Distance Formula
In this activity, students' will use a pair of motion detectors to record the cartesian coordinates of a rod moving in a star-shaped pattern and calculate the distances moved between the vertices of the star. They also compare these...
Geometry Help
Geometry Help: Area of Geometric Shapes
Explains the basic concept of the area of geometric shapes with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Cuemath
Cuemath: Area of a Shape
A comprehensive guide for learning all about area with definitions, how it is measured, the area of various shapes, solved examples, and practice questions.
Science Struck
Science Struck: A Comprehensive Printable List of Geometry Formulas
Provides a list of area and perimeter formulas for two-dimensional shapes and volume and surface area formulas for three-dimensional solids.
PBS
Pbs Learning Media: Formulas: Targeted Math Instruction
At the end of this lesson plan about formulas, students will be able to identify and apply the correct formula for a given situation, solve for any unknown component of the formulas for perimeter, circumference, and area of regular and...
Writing Fix
Writing Fix: Left Brained Writing Prompt: Simple Formula Poems: Diamonte
Diamantes are poems that form a diamond-shape, and they are often about two opposite ideas. Write to topics of your choosing using a DIAMANTE or if you need help with a topic, click on the topic generator for ideas. Really try to include...
George Mason University
Area Formula Lab
In this set of worksheet activities, students will be guided to discover formulas for area of polygonal shapes and circles.
Math Is Fun
Math Is Fun: Area of Plane Shapes
The resource consists of area formulas and diagrams for a variety of shapes.
Mangahigh
Mangahigh: Shape: Speed, Distance and Time Calculations
Test your knowledge of speed, distance, and time formulas.
Government of Alberta
Learn Alberta: Math Interactives: Exploring Composite Figures
Investigate how a variety of shapes can be used to form composite figures using this interactive Learn Alberta math resource. Students will also work on using relevant operations and formulas to figure out the total area of composite...
AAA Math
Aaa Math: Circumference of a Circle
Calculating the circumference or perimeter of a circle has gotten easier with this formula and practice for finding the circumference.
Georgia State University
Georgia State University: Hyper Physics: Lens Maker's Formula
A discussion of the lens-maker's formula and its use in determining the effect of lens shape and index of refraction upon the magnifying power of a lens. Includes an interactive problem-solving section.
Calculator Soup
Calculator Soup: Geometric Shapes
This reference lists formulas for geometric shape measurements and offers links to online calculators.
The Math League
The Math League: Surface Area
This tutorial explains the concept of surface area, and then goes through multiple shapes offering the specific surface area formula for each one.
Math Planet
Math Planet: Pre Algebra: Measure Areas
Demonstrates how to calculate the area of two-dimensional shapes using formulas. Covers parallelogram, triangle, trapezoid, and circle. Includes a video modeling how to find the area of a circle and a triangle. [0:59]
Texas Education Agency
Texas Gateway: Estimating Measurements/using Models and Formulas: 3 D Figures
Given application problems involving 3-dimensional figures, the student will estimate measurements, including surface area and/or volume, then solve the problems.
Shodor Education Foundation
Shodor Interactivate: Lesson: Area (Elementary)
In this lesson students will practice finding the area rectangular shapes and irregular shapes with right angles and understand why the area formula works for rectangular shapes.
Shodor Education Foundation
Shodor Interactivate: Area (Elementary)
In this lesson students will practice finding the area of rectangular shapes and irregular shapes with right angles and understand why the area formula works for rectangular shapes. CCSS.Math.Content.3.MD.C.5.b A plane figure which can...
Cuemath
Cuemath: Cone
Learn all about the basic properties of a cone. This lesson targets the formula, volume, parts, and shapes of a cone and has interesting solved examples and practice questions.