Today's Agenda 1. New Unit: Trigonometry!!! 2. WarmUp 3 ...mrsfujsmathematics.weebly.com/uploads/1/9/7/1/... · Inverse trigonometric ratios are used to solve for missing angles.
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Day 1 Trig Ratios in Right Triangles.notebook November 27, 2014
Today's Agenda
1. New Unit: Trigonometry!!!
2. WarmUp
3. Trig Ratios in Right Triangles
Day 1 Trig Ratios in Right Triangles.notebook November 27, 2014
WarmUp
Remember me? I'm a formula used to solve for missing side lengths in rightangled triangles!! I'm called the _____________________ Theorem!
Side c can also be called the __________________.
Label the following diagram with a, b and c.
a2 + b2 = c2
If I need to solve for side a, I can rearrange the equation to get a2 by itself as follows:
a2 =
Day 1 Trig Ratios in Right Triangles.notebook November 27, 2014
Match the triangles below to their solutions by writing the corresponding letter next to each number:
3 cm
4 cm
4 cm
3 cm
1. 2.
Solution B:Solution A:
∴ side a is 2.65 cm. ∴ side c is 5 cm.
Day 1 Trig Ratios in Right Triangles.notebook November 27, 2014
Day 1 Trig Ratios in Right Triangles.notebook November 27, 2014
Day 1 Trig Ratios in Right Triangles.notebook November 27, 2014
Day 1 Trig Ratios in Right Triangles.notebook November 27, 2014
Triangle Problems:
Day 1 Trig Ratios in Right Triangles.notebook November 27, 2014
Now for some homework!!
• p. 2 # 13
• p. 8 # 17
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