Trigonometry and triangles
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{ Trigonometry and Triangles Michael Schmidt
Transcript of Trigonometry and triangles
Trigonometry
Sine Cosine Tangent
Length of triangle legs
Angle of triangle corners
Area of triangles
What we are doing
Branch in Mathematics
Uses trig functions
Triangles
Mostly right triangles
Uses relationships to find unknowns
Trigonometry
A 6ft tall man is standing in front of a light. The light is casting a shadow. If the angle of depression at the man’s head is 60° how long
is the shadow?
Story Problems
60°
6ft
L
L=10.39ft
Story problemsThere is a window 33ft up a building and the
only ladder is 40ft long. For safety reasons the ladder is leaned against the building at
52°. Will the ladder reach the window?
52°
40ft
No, the ladder will not reach the window.