TRIG

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In a right triangle ABC, C = 90°, b = 380.1 inches and c = 589.1 inches. Solve for all the missing parts using the given information. (Round each answer to one decimal place for side and to two decimal places for angles.)
A = °
B = °
a = inches
IM lOST!

  • TRIG -

    You have a right-angled triangle , so basic trig is needed here
    Make a sketch
    looks like cosA = adjacent/hypotenuse = 380.1/589.1 = .64522....
    Angle A = 49.82°
    B = 90° - A , you do that one

    sinA = a/589.1
    a = 589.1sin 49.82 = 450.0

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