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2 years ago

What is the measure of angle A

Mathematics

1 answer:

Arisa [49]2 years ago

8 0

Answer:

27.7°

Step-by-step explanation:

To find m<A, apply trigonometric function.

Reference angle = A

Side length opposite to A = 20

Hypotenuse = 43

Apply SOH, which is:

$Sin (A) = \frac{Opp}{Hyp}$

Plug in the values

$Sin (A) = \frac{20}{43}$

$A = sin^{-1}(\frac{20}{43})$

A ≈ 27.7° (nearest tenth)

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3 years ago

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Answer:

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