Discusses how to find the area of a triangle using Heron's formula and provides interactive examples and problems you can solve.

Explore and learn about the features and properties of a right triangle in this lesson. Includes examples and practice questions.

Definitions and formulas for the computation of surface areas of triangles, rectangles, and any regular polygon. Helpful links to related pages.

This CoolMath resource provides an introduction to some Precalculus formulas.

Learn a formula, created thousands of years ago, that you can use to calculate the area of a triangle if you know all three sides' lengths.

This SMART whiteboard activity will help students learn the formula for finding the area of a triangle. Students will practice what they have learned by using examples created for visual and kinesthetic learners.

Learn about corresponding angles with this resource which offers detailed explanations, examples, and interactives. Subjests covered include the area of a triangle. Links to related topics.

Learn about the area of an equilateral triangle with this helpful reference tool. Provides a detailed definition, examples, and an internet activity that enhances further explanation. Includes links to related topics.

You can pick up some valuable pointers on how to find the area of a triangle, rectangle, and other quadrilaterals. When you finish working your way through the pages you can take an on-line "Test Bite," and check your understanding.

From the University of Georgia, this tutorial provides exercises and problems using Heron's Formula for the area of a triangle, makes use of several problem representation methods, including a graph.

This site provides a detailed overview of Heron's Formula. Content includes a definition, example, and formula.

Find a quick, concise explanation of area and the formulas for different shapes. An example is given to help you understand how find the area of a shape. The area formulas are listed for different types of shapes.

[Free Registration/Login may be required to access all resource tools.] An alternate formula for the area of a triangle.

The geometry resource explores the different formulas used to calculate the area of triangles. The applet investigates the angles and sides of a triangle.

Get independent practice working with finding the perimeter and area of triangles and trapezoids. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.

The geometry resource investigates the area of polygons, triangles, circles, and squares. Formulas, examples, and practice exercises are included.

Sixth graders find the area of a triangle using square units and the area formula.

[Free Registration/Login may be required to access all resource tools.] This study guide reviews the formulas for area and perimeter of triangles and different kinds of quadrilaterals.

[Free Registration/Login may be required to access all resource tools.] In this lesson students use formulas and given information to figure out the dimensions and the area of different triangles. Students examine guided notes, review...

Sixth graders apply what they know about area of other polygons to develop a formula for finding the area of a triangle.

[Free Registration/Login may be required to access all resource tools.] Find the area of a triangle when all three sides are known.

[Free Registration/Login may be required to access all resource tools.] This lesson covers Heron's Formula and problem solving using trigonometry.

Define's Heron's Formula and provides examples for how to use the formula to calculate the area of a triangle.

Students will measure the lengths of the sides of three different triangles and apply Heron's Formula to calculate the area in acres. The measurements for this activity may be done outside or, using a specified scale, completed inside....