Find the tangents of the acute angles in the right triangle. Write each answer as a fraction in simplest form and as a decimal rounded to four places.

Question image

Understand the Problem

The question is asking to find the tangent values of the acute angles in a right triangle identified with sides labeled 1, √5, and 2. The answers should be provided both as fractions in simplest form and as decimals rounded to four decimal places.

Answer

- \( \tan(G) = \frac{\sqrt{5}}{5} \approx 0.4472 \) - \( \tan(H) = \sqrt{5} \approx 2.2361 \)
Answer for screen readers
  • ( \tan(G) = \frac{\sqrt{5}}{5} ) and approximately ( 0.4472 )

  • ( \tan(H) = \sqrt{5} ) and approximately ( 2.2361 )

Steps to Solve

  1. Identify the triangle sides The sides of the triangle are labeled as follows:
  • Opposite side to angle ( G ) is ( 1 )
  • Adjacent side to angle ( G ) is ( \sqrt{5} )
  • The hypotenuse is ( 2 )
  1. Find the tangent of angle ( G ) The tangent of an angle in a right triangle is defined as the ratio of the opposite side to the adjacent side. For angle ( G ): $$ \tan(G) = \frac{\text{Opposite}}{\text{Adjacent}} = \frac{1}{\sqrt{5}} $$

  2. Simplify the tangent of angle ( G ) To express the tangent in simplest form, multiply the numerator and the denominator by ( \sqrt{5} ): $$ \tan(G) = \frac{1}{\sqrt{5}} \cdot \frac{\sqrt{5}}{\sqrt{5}} = \frac{\sqrt{5}}{5} $$

  3. Calculate decimal value for ( \tan(G) ) To get the decimal value of ( \tan(G) ): $$ \tan(G) \approx \frac{\sqrt{5}}{5} \approx 0.4472 $$ (rounded to four decimal places)

  4. Find the tangent of angle ( H ) For angle ( H ), the opposite side is ( \sqrt{5} ) and the adjacent side is ( 1 ): $$ \tan(H) = \frac{\text{Opposite}}{\text{Adjacent}} = \frac{\sqrt{5}}{1} = \sqrt{5} $$

  5. Calculate decimal value for ( \tan(H) ) To find the decimal value of ( \tan(H) ): $$ \tan(H) \approx 2.2361 $$ (rounded to four decimal places)

  • ( \tan(G) = \frac{\sqrt{5}}{5} ) and approximately ( 0.4472 )

  • ( \tan(H) = \sqrt{5} ) and approximately ( 2.2361 )

More Information

The tangent function relates to the slopes of the sides of the triangle, allowing us to understand the angle measures and properties. Tangent values can be useful in real-life applications such as engineering, physics, and architecture.

Tips

  • Forgetting to simplify the tangent ratio before finding the decimal form.
  • Misidentifying opposite and adjacent sides for the angles.
  • Not rounding decimal values to the required number of decimal places.

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