WELCOME BACK TO OMHS & WELCOME TO HONORS TRIGONOMETRY

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Presentation transcript:

WELCOME BACK TO OMHS & WELCOME TO HONORS TRIGONOMETRY Mr. Calise www.mrcalise.weebly.com

1) If side a has a length of 12 cm. and side c has a length of 24 cm. Drill 1) If side a has a length of 12 cm. and side c has a length of 24 cm. Find the length of b. 2) What is the longest side in triangle ABC?

“Getting Triggy With It” WSHS RAP SONG (Math Remix)

Discovery (3,4,5 & 6,8,10)

Scale Factor of 3!

Discovery Questions How are the triangles #1, #2 and #3 related? Label the shortest side “a”, middle side “b” and the longest side “c” for each triangle. Fill in the chart shown for each triangle. Answer the questions on the question sheet.

Introduction to Trigonometry In this section we define the three basic trigonometric ratios, sine, cosine and tangent. opp is the side opposite angle A adj is the side adjacent to angle A hyp is the hypotenuse of the right triangle hyp ….OpP adj A

Definitions Sine is abbreviated sin, cosine is abbreviated cos and tangent is abbreviated tan. The sin(A) = opp/hyp The cos(A) = adj/hyp The tan(A) = opp/adj Just remember SOHCAHTOA! Sin Opp Hyp Cos Adj Hyp Tan Opp Adj