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

Learn how to sine to find the area of a triangle.

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

Find the base or height of a triangle when given the other and the area. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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.

How can trigonometry be used to find the area of a triangle or parallelogram? Does the triangle need to be a right triangle, and how accurate can the results possibly be? The answers to these questions are found here along with several...

Use this interactive tool to learn how to find the area of a triangle. Click on "Instructions" for details on how to use this tool. Click on "Explore" for more ideas. [Requires Java.]

Determine the area of a triangle.

Teat your knowledge of determing the area of a triangle using trigonometry.

Use Glencoe's randomly generated self-checking quiz to test your knowledge of finding the area of a triangle. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check...

This lesson will explore ways to determine the area of a triangle.

Find the area of right triangles Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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....

In this activity, you will construct special segments of a triangle named altitudes, medians, and angle bisectors, Using their definitions. You will look at how an altitude, a median, and an angle bisector divide the area of a triangle....

Sixth graders find the area of a trapezoid by decomposing it into triangles and using the formula

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.

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

Investigate the qualities of a triangle with these seventeen word problems. Many include ways to extend the lesson.

[Free Registration/Login may be required to access all resource tools.] This lesson covers how to find the area of a triangle using sine.

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

Try to figure out the area of this challenging shape. In order to view the images, you will need to use JavaSketchpad.

An introduction to finding the area of a triangle using the sine function. Includes several pictures and examples.

Students will find the area of a parallelogram and the area of a triangle.

Demonstrates the logic behind the formula for the area of a triangle. Includes several practice problems and their explanations.