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kipiarov [429]
2 years ago
6

What is the approximate value of x in the diagram below

Mathematics
2 answers:
irga5000 [103]2 years ago
8 0

We use Tan in this case:

Tan=(opposite/adjacent)

Tan(36)=23/x

x=23/Tan(36)

x=31.64 length

Hope it helps!

nikitadnepr [17]2 years ago
8 0

Answer:

x ≈ 31.64

Step-by-step explanation:

<u>Trigonometric ratios</u>

\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}

where:

  • \theta is the angle
  • O is the side opposite the angle
  • A is the side adjacent the angle
  • H is the hypotenuse (the side opposite the right angle)

Given:

  • sin 36° ≈ 0.588
  • cos 36° ≈ 0.809
  • tan 36° ≈ 0.727

The given trigonometric ratios all use the angle of 36°.

From inspection of the given diagram:

  • x is the side <u>adjacent</u> to the angle of 36°
  • 23 is the side <u>opposite</u> to the angle of 36°

Therefore, we should use the <u>tan trig ratio</u>.

\implies \sf \tan(36^{\circ})=\dfrac{23}{x}

\implies \sf x=\dfrac{23}{\tan(36^{\circ})}

Substituting the given value for tan 36°:

\implies \sf x \approx \dfrac{23}{0.727}

\implies \sf x\approx31.64

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