October 29, 2007

Students use the Pythagorean theorem to solve a tricky puzzle involving a square with four isosceles triangles cut from the corners.

- Mathematics > General
- Mathematics > Geometry
- Mathematics > Problem Solving

- Grade 6
- Grade 7
- Grade 8
- Grade 9
- Grade 10
- Grade 11
- Grade 12

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.