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Sveta_85 [38]
3 years ago
12

May someone solve and give explanation

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

θ = 49.4584°

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] cosθ = adjacent over hypotenuse
  • Inverse Trig

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

Angle θ = ?

Adjacent Leg = 13

Hypotenuse = 20

<u>Step 2: Find Angle</u>

  1. Substitute in variables [cosine]:                                                                   cosθ = 13/20
  2. Inverse Trig:                                                                                                    θ = cos⁻¹(13/20)
  3. Evaluate:                                                                                                         θ = 49.4584°
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