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For triangle ABC (C=90∘A=32∘c=200 inches), find a

a. a≈113.05 inches
b. a≈167.75 inches
c. a≈90.68 inches
d. a≈78.37 inches

User ARZ
by
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1 Answer

4 votes

Final answer:

To find side a of the right triangle ABC with the given angles and hypotenuse, use the cosine function: a = c × cos(A). After calculation, the side a is approximately 169.6 inches. If the options provided do not match, it's possible there is an error in the given choices or calculations.

Step-by-step explanation:

The student is asking for help in solving for side a of a right triangle ABC, where angle C is 90 degrees, angle A is 32 degrees, and side c (the hypotenuse) is 200 inches. To find side a, we can use the trigonometric function cosine, which is adjacent over hypotenuse. The cosine of angle A (cos 32°) is equal to side a divided by the hypotenuse c.

Therefore, using the formula a = c × cos(A), we plug in the values provided to calculate a:

a = 200 inches × cos(32°)

a ≈ 200 inches × 0.8480

a ≈ 169.6 inches

However, since this value is not provided in the options, there may have been a mistake. It is important to recheck the trigonometric values and calculations for accuracy.

User NAviD
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