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# Rt triangle trig

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### Rt triangle trig

1. 1. Right Triangle Trigonometry
2. 2. A right triangle has: <ul><li>one right angle and 2 acute angles </li></ul>
3. 3. Basics of Right Triangle Trig
4. 4. <ul><li>In mathematics, we often use Greek letters to label angles. </li></ul><ul><li>In this example, the Greek letters “alpha” and “beta” are used. </li></ul><ul><li>By the end of today’s </li></ul><ul><li>lesson, you will be able </li></ul><ul><li>to find the mistake in this </li></ul><ul><li>picture! </li></ul>
5. 5. Theta <ul><li>Along with alpha and beta, the Greek letter theta is used to denote the angle in question. </li></ul><ul><li>Theta looks like a 0 with a line through the center,  </li></ul>
6. 6. Mnemonic to Memorize <ul><li>We use SOH-CAH-TOA to help us to remember the basic trigonometric ratios: </li></ul>
7. 7. <ul><li>Below you can see part of its usefulness! </li></ul>
8. 8. Real Life Examples <ul><li>Right triangle trigonometry is useful to help solve real life problems. </li></ul><ul><li>The following are all examples of real life problems. </li></ul>
9. 10. We can use trigonometry to find out the height of the kite!
10. 13. Oceanography
11. 14. Angle of Elevation <ul><li>Angle of Elevation is used in many real life right triangle trigonometry problems. </li></ul>
12. 15. Calculator <ul><li>We can use our calculators to help solve trigonometry problems </li></ul>