Sine, Cosine, Tangent. 8.7 Sine, Cosine, And Tangent Essential Question: How do you find the side lengths of a triangle that is not special?

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Presentation transcript:

Sine, Cosine, Tangent

8.7 Sine, Cosine, And Tangent Essential Question: How do you find the side lengths of a triangle that is not special?

opposite adjacent Study of ∆s and relationships between their angles and sides Angles are labeled with uppercase (ex. A) sides are lowercase (ex. a) An angle and its opposite side use the same letter (ex. A and a)

10√ √

12 6√3

5min

8.8 Trig Ratios with a Calculator Essential Question: How do you find side lengths of a triangle that is not special?

To find a: To find b:

To find c: To find d:

Plicker Exit Slip What is sin(A)? A) B) C) D) What is tan(25)? Round to the hundredths. A) 0.42 B) 0.46 C) 0.47 D) 0.91 √17 2√2 5

Homework  8.7 ALL  8.8 ALL