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Scorpion4ik [409]
3 years ago
8

What is the measure of angle A

Mathematics
1 answer:
Arisa [49]3 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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