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Scilla [17]
3 years ago
11

MY

Mathematics
1 answer:
Pie3 years ago
4 0

Answer:

<B = 56.25°

Step-by-step explanation:

Reference angle = B

Hypotenuse = AB = 9

Adjacent = BC = 5

Applying trigonometric ratio:

cos (B) = \frac{adj}{hyp}

cos (B) = \frac{5}{9}

B = cos^{-1}(\frac{5}{9})

B = 56.25° (nearest hundredth)

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3 years ago
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Answers and Step-by-step explanations:

16. Yes; we can see that AB || CD, so by definition of alternate angles, angles BAE and CDE are equal. In addition, angles AEB and CED are vertical angles, so by definition, they are congruent. Then by the AA Similarity Theorem, triangles AEB and CED are similar.

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7 0
3 years ago
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Answer:

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8 0
3 years ago
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