# Deg Rad Deg Rad Deg Rad                

## Presentation on theme: "Deg Rad Deg Rad Deg Rad                "— Presentation transcript:

From the chart we get that 45 degrees has a tan = 1
Find the for all angles that are between 0 and 360 degrees (also in include the radian measurements y From the chart we get that 45 degrees has a tan = 1 x tan is negative in the 2nd and 4th quadrants Place a reference angle of 45 degrees in the 2nd quadrant

We also need to place a reference angle of 45 in the 4th quadrant
Find the for all angles that are between 0 and 360 degrees (also in include the radian measurements y We also need to place a reference angle of 45 in the 4th quadrant x This would give us an angle of 315º (360 – 45) This question would have a final answer of 135º, 315º, radians, or radians

Law of Cosines – Finding a Missing Side
Find side b in the following triangle 65º We need angle B (the angle between the sides) 180 – 80 – 65 = 35 23 C 80º 35º 34 B

Law of Cosines – Finding a Missing Side
Find missing side of the triangle, and then use the law of sines to find the missing angles 14 75º 43 A 41.63 B

Law of Cosines – Finding a Missing Side
Find missing side of the triangle, and then use the law of sines to find the missing angles 14 75º 43 A We can now use law of sines to find one of the angles that is missing 41.63 B

Law of Cosines – Finding a Missing Side
14 75º 43 A 41.63 B

Law of Cosines – Finding a Missing Side
Now use this angle and the 75 that you were given in the beginning to find the 3rd angle 14 75º 43 A 41.63 B

Find the exact trig values for an angle of
This angle has a terminal side in the 2nd quadrant (because 5/4 = 1.2) y x

Finding Trig Values from an x-y coordinate
Find the 6 trig functions for an angle which has terminal side passing through (-5, -3) y x