Math Problem Statement

What is the value of \( \tan(\theta) \) for the given right triangle with sides 20 and 29?

Solution

The image shows a right triangle with the following information:

  • One leg of the triangle has a length of 20.
  • The hypotenuse has a length of 29.
  • The angle θ\theta is marked, and the goal is to find tan(θ)\tan(\theta).

The formula for tan(θ)\tan(\theta) is:

tan(θ)=oppositeadjacent\tan(\theta) = \frac{\text{opposite}}{\text{adjacent}}

In this case, we know the length of the opposite side (20), but we need the length of the adjacent side to compute tan(θ)\tan(\theta). We can use the Pythagorean theorem to find the missing side. The Pythagorean theorem states:

a2+b2=c2a^2 + b^2 = c^2

Where:

  • aa and bb are the legs of the triangle,
  • cc is the hypotenuse.

Here, we know:

  • One leg: 20
  • Hypotenuse: 29

Let the adjacent side be xx. Applying the Pythagorean theorem:

x2+202=292x^2 + 20^2 = 29^2 x2+400=841x^2 + 400 = 841 x2=841400=441x^2 = 841 - 400 = 441 x=441=21x = \sqrt{441} = 21

Now that we know the adjacent side is 21, we can calculate tan(θ)\tan(\theta):

tan(θ)=oppositeadjacent=2021\tan(\theta) = \frac{\text{opposite}}{\text{adjacent}} = \frac{20}{21}

So, tan(θ)=2021\tan(\theta) = \frac{20}{21}.

Would you like further details on this, or do you have any additional questions?

Here are 5 related questions:

  1. How would you calculate sin(θ)\sin(\theta) in this triangle?
  2. How would you calculate cos(θ)\cos(\theta) in this triangle?
  3. Can the value of tan(θ)\tan(\theta) ever be greater than 1? Why or why not?
  4. What is the relationship between the tangent, sine, and cosine of an angle in a right triangle?
  5. How would the tangent ratio change if the opposite side was longer?

Tip: Remember that the tangent function always involves the ratio of the opposite to adjacent sides in a right triangle, regardless of the triangle's size.

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Right Triangle

Formulas

Pythagorean theorem: a^2 + b^2 = c^2
Tangent function: \( \tan(\theta) = \frac{\text{opposite}}{\text{adjacent}} \)

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 8-10