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Molodets [167]
3 years ago
8

Find the measure of each angle indicated. Round to the nearest tenth.

Mathematics
2 answers:
vampirchik [111]3 years ago
6 0

Answer:

51

Step-by-step explanation:

eduard3 years ago
3 0
<h3>Answer: D) 55.7 degrees approximately</h3>

=====================================================

The reference angle has AC = 12.3 as the opposite side and BC = 8.4 as the adjacent side. The tangent ratio ties the opposite and adjacent sides together.

--------

tan(angle) = opposite/adjacent

tan(theta) = AC/BC

tan(theta) = 12.3/8.4

theta = arctan(12.3/8.4)

theta = 55.6697828044967

theta = 55.7 degrees approximately

--------

arctan is the same as inverse tangent which is written as \tan^{-1}

make sure your calculator is in degree mode

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