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Published byJohn Farmer Modified about 1 year ago

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Test Review!

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Learning Goals from the Unit I can solve proportions I can determine angle relationships involving triangles and parallel lines (all inside angles = 180, Z pattern, F pattern, X pattern, etc) I can find side lengths of similar triangles I can find triangle side lengths using sine, cosine, and tangent I can find triangle angles using sine, cosine, and tangent (taking the inverse!) I can solve problems involving similar triangles, Pythagorean Theorem, and Sine, Cosine & Tangent (“Primary trig. ratios”)

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Important Terms ALWAYS angles made with the HORIZON!!!!

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What do we do with this one? You can’t solve this one! You either Forgot to put in some information Chose the wrong ratio (Can you do sine or cosine with the other sides?) Need to find some other information first (Use all the angles add to 180, Pythagorean Theorem, or another ratio)

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How do you decide which method to use? Pythagorean Theorem a 2 + b 2 = c 2 Sin A = opp/hypCos A = adj/hypTan A = opp/adj - When you have 2 sides of a right triangle and need the 3 rd side You have 2 of: -Angle -Its Opp Side -The Hyp And you need the one leftover You have 2 of: -Angle -Its Adj Side -The Hyp And you need the one leftover You have 2 of: -Angle -Its Opp Side -Its Adj side And you need the one leftover Use …

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Which do we use? θ

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Work Time! Not talk time!

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