GMF 10 2. Lesson 8.2 (1) FHS.notebook
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GMF 10 Lesson 8.2 (1)
Is it a Pythagorean triple?
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• Ratio:a comparison between two numbers with the same units.
GMF 10 2. Lesson 8.2 (1) FHS.notebook
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Pythagorean Theorem was used to calculate the size of an unknown side when the other two sides were known in a right triangle.
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Is the triangle formed in the middle with side lengths 9cm12cm15cm a right triangle? Prove that the triangle formed is a right triangle.
GMF 10 2. Lesson 8.2 (1) FHS.notebook
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May 01, 2019
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Trig ratios are used to calculate a missing side in a right triangle when you have one side and a reference angle.
Trig ratios are used to calculate an angle measurement when you have two sides.
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Identifying sides of a right triangle
• Sides are identified relating to a reference angle.
• Opposite, Adjacent, Hypotenuse
hypotenuseadjacent
opposite
GMF 10 2. Lesson 8.2 (1) FHS.notebook
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May 01, 2019
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Story of Trig Ono Metry> There once was this boy named Trig Ono Metry who
was about to turn 15.
GMF 10 2. Lesson 8.2 (1) FHS.notebook
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One of his tribes rituals is that when a boy turns 15 he must undergo a certain task to enter into manhood. They need to walk across hot coals barefoot.
Trig was concerned about how he would do this so he came up with a plan. He decided he would repeat one phrase over an over while he was completing his task. The statement was “SOH CAH TOA”, (which is what he planned to do when finished). Using this strategy he was successful and entered into manhood.
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Trig ratios
SOH CAH TOA
GMF 10 2. Lesson 8.2 (1) FHS.notebook
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May 01, 2019
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