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Rufina [12.5K]
3 years ago
13

What is the length of the side labeled x?

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

AB = 42.15 units

Step-by-step explanation:

In triangle ABD,

By applying Cosine rule in this triangle,

cos(30)°= \frac{\text{Adjacent side}}{\text{Hypotenuse}}

\frac{\sqrt{3} }{2} = \frac{AD}{AB}

\frac{\sqrt{3}}{2}=\frac{AD}{47}

AD = \frac{47\sqrt{3}}{2}

By applying tangent rule in ΔACD,

tan(44)° = \frac{\text{Opposite side}}{\text{Adjacent side}}

tan(44)° = \frac{AD}{x}

0.9657 =  \frac{\frac{47\sqrt{3}}{2}}{x}

0.9657 = \frac{47\sqrt{3}}{2x}

x = \frac{47\sqrt{3}}{2(0.9657)}

x = 42.15

  ≈ 42.2 units

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