GEO.4 Right Triangle Trigonometry

Beginning Lesson

Aws4 request&x amz signedheaders=host&x amz signature=cb0116218a4b655e2ee2af8a83758b90434d1530092d434a8edb560f932ea54d

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=34d662b899eee8b011d80b9261b5c0af28334741e81ae26384428ef3fe84ad1c

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=68cb265181b64dc8fcace7fd6744d16c587bdc2c44d2d81abdafa6b65ff4e515

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)