Unit 5 - Intro to Trigonometry

Front

What is the ratio for Sine?

Back

Opp/Hyp

Front

Which trigonometric ratio should you use to find the opposite side?

Back

Sine Ratio

Front

What is the acronym used to remember the trigonometric ratios?

Back

SOH CAH TOA

Front

What does SOH stand for in trigonometry?

Back

Sine = Opposite / Hypotenuse

Front

What does CAH stand for in trigonometry?

Back

Cosine = Adjacent / Hypotenuse

Front

What does TOA stand for in trigonometry?

Back

Tangent = Opposite / Adjacent

Front

How do you find the missing angle using inverse trig ratios?

Back

Use the inverse functions: sin⁻¹, cos⁻¹, tan⁻¹.

Front

If the opposite side is 5 and the hypotenuse is 13, what is the sine of the angle?

Back

5/13 or approximately 0.3846

Front

If the adjacent side is 12 and the hypotenuse is 13, what is the cosine of the angle?

Back

12/13 or approximately 0.9231

Front

If the opposite side is 5 and the adjacent side is 12, what is the tangent of the angle?

Back

5/12 or approximately 0.4167