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Special Right TrianglesPowerPoint Presentation

Special Right Triangles

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## PowerPoint Slideshow about ' Special Right Triangles' - orlando-farrell

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Definition

- Special Right Triangles – right triangles whose angle measures are 45°-45°-90° or 30°-60°-90°.

Get out a dollar bill if you have one!

What kind of triangle is this?

If you split this triangle down the middle (top to bottom) what two triangles would you have?

Essential Question

- How do I find the side lengths of a 30-60-90 special right triangle?
- How do I find the side lengths of a 45-45-90 special right triangle?

30°-60°-90° Triangle Theorem

Find all side lengths for each triangle. Please draw the triangles on your paper.

1.

60º

18

3.

30º

30º

12

60º

2.

60º

20

30º

Warm-Up (will be collected) triangles on your paper.

Find all side lengths for each triangle. Please draw the triangles on your paper and box your answers.

1.

60º

26

2.

30º

30º

83

3.

60º

30º

9

60º

45 triangles on your paper. °-45°-90° Triangle Theorem

Example 1 triangles on your paper.

- Find the value of x.

You Try! triangles on your paper.

- Find the value of x.

Example 2 triangles on your paper.

- Find the value of x.

You Try! triangles on your paper.

- Find the value of x.

Example 3 triangles on your paper.

- Find the values of s and t.

You Try! triangles on your paper.

- Find the values of f and g.

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