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Find the missing angle measurements round to the nearest 10th of a degree 

Find the missing angle measurements round to the nearest 10th of a degree -example-1

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Explanation:

1st we want to find the measure of <1 so we use cos

cos( 1 ) =18/30

cos( 1 ) =18/30 cos (1) = 0.6

cos( 1 ) =18/30 cos (1) = 0.61= cos^-1(0.6)

cos( 1 ) =18/30 cos (1) = 0.61= cos^-1(0.6)1° = 53.13° so the angle of 1 is 53.13°

2nd we can solve angle 2 by using sin

sin(2) = 18/30

sin(2) = 18/30 sin(2) = 0.6

sin(2) = 18/30 sin(2) = 0.62 = sin^-1(0.6)

2 = 36.869° round to 36.87°

so the angle 2 is 36.87°

User Jason Coyne
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