GEO.4 Right Triangle Trigonometry

Beginning Lesson

Aws4 request&x amz signedheaders=host&x amz signature=03762492ae4ea8b16acf4df618e8f951538b2fcf81a30c982227fa0f068a0f72

Viewmongous

When you buy a bigger TV, how much more do you really get? Students use the Pythagorean Theorem and proportional reasoning to investigate the relationship between the diagonal length, aspect ratio, and screen area of a TV.

Topic: Geometry (G), Similarity, Right Triangles, and Trigonometry (SRT)

Middle Lesson

Aws4 request&x amz signedheaders=host&x amz signature=c7f027fbc75c5f2c7186234b0acda2dd937b13ef56889405054cfd97c24fbc3d

51-Foot Ladder

How high can a ladder safely reach? Students combine the federal guideline for ladder safety with the Pythagorean Theorem (middle school) or trigonometric ratios (high school) to explore how high you can really climb.

Topic: Geometry (G), Similarity, Right Triangles, and Trigonometry (SRT)

End Lesson

Aws4 request&x amz signedheaders=host&x amz signature=89e4b47eec9a75e27e0fb3c67f9f20ee28b489229b15bc1e356c56ae2701d0e5

Sharper Image

Should you buy a camera lens with vibration reduction? Students interpret graphs and use right triangle trigonometry to explore the relationship between focal length, viewing angle, and blurriness.

Topic: Creating Equations (CED), Seeing Structure in Expressions (SSE), Similarity, Right Triangles, and Trigonometry (SRT)