Week 4- Math 10

This week in math we started to learn about Trigonometry. One of the lessons was how to find the measurement of a missing side.

Step 1- You always start with labeling the sides.

  • Hypotenuse (hyp): The side across from right angle (longest side in a triangle)
  • Opposite (opp): The side across reference angle
  • Adjacent (adj): The non-hypotenuse side next to the angle.

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Step 2-  Choose a ratio. To do this you can use SOH CAH TOA.

  • SOH: Sine=opp/hyp
  • CAH: Cosine=adj/hyp
  • TOA: Tangent=opp/adj

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Step 3- Insert clues into ratio.

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Step 4- Ratio. On your calculator you will press either sin ,cos , or tan depending on your question then input the degree.

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Step 5- We are going to isolate the variable. Move the denominator to the other side of the = and now multiply is by answer you just got.

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Step 6-  Once you multiply round the decimal and make sure to put a dot on top of = to show you have rounded.

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