8-3 trigonometry day 2. recall: trigonometric ratios (don’t need to write) soh – cah – toa

8-3 TRIGONOMETRY DAY 2

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8-3 TRIGONOMETRY DAY 2

RECALL: Trigonometric Ratios(don’t need to write)

SOH – CAH – TOA

Solving with a calculator:Find the value of x to the nearest tenth.

Page 4: 8-3 TRIGONOMETRY DAY 2. RECALL: Trigonometric Ratios (don’t need to write) SOH – CAH – TOA

Solving (x in numerator - MULTIPLY)Round to the tenth

Page 5: 8-3 TRIGONOMETRY DAY 2. RECALL: Trigonometric Ratios (don’t need to write) SOH – CAH – TOA

Solving (x in denominator - DIVIDE)

Page 6: 8-3 TRIGONOMETRY DAY 2. RECALL: Trigonometric Ratios (don’t need to write) SOH – CAH – TOA

TWAP

Find the value of the missing variable to the nearest tenth.

Page 7: 8-3 TRIGONOMETRY DAY 2. RECALL: Trigonometric Ratios (don’t need to write) SOH – CAH – TOA

Solving for x as angle- INVERSE!! Use the 2nd key to get to sin-1

Watch me first! ROUND TO THE WHOLE DEGREE

43x

16x

Page 8: 8-3 TRIGONOMETRY DAY 2. RECALL: Trigonometric Ratios (don’t need to write) SOH – CAH – TOA

TOO• What is the measure of angle X to the nearest degree?

37 41

Page 9: 8-3 TRIGONOMETRY DAY 2. RECALL: Trigonometric Ratios (don’t need to write) SOH – CAH – TOA

Homework

Sine, Cosine, Tangent Ratios – Worksheet #2

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