August 26, 2009

Learn about the Pythagorean theorem.

- Mathematics > General
- Mathematics > Geometry

- Grade 3
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- Grade 10

Prove the Pythagorean identity sin²(?) + cos²(?) = 1 and use it to find sin(?), cos(?), or tan(?) given sin(?), cos(?), or tan(?) and the quadrant of the angle.

Prove theorems about triangles.

Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.?

use models and diagrams to explain the Pythagorean theorem.