Education Technology

Ratios of Right Triangles

Published on 03/06/2013

Activity Overview

In this activity, students will explore the ratios of right triangles. Students will discover that they can find the measure of the angles of a right triangle given the length of any two sides.

Key Steps

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    In this activity, students will investigate ratios of right triangles. First, students will be asked several questions about the definition of the sine, cosine, and tangent ratios.

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    Next, students will investigate the sine and cosine ratios. Since the ratios are fixed in a right triangle, we can find the measure of the angles using trigonometry. Students will use the Lists & Spreadsheet application to collect data and see that the ratio remains constant.

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    Finally, the students will be asked to apply what they have learned to find the measure of the angles of a right triangle given the measure of at least two sides.