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Use SOHCAHTOA to solve for the unknown side

Use SOHCAHTOA to solve for the unknown side-example-1
User PetrV
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all triangles add up to 180, the angle with the box is 90 so 90 + 30 = 120 subtract 120 from 180 which is 60 and that should be the missing angle
User Kurtanamo
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