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Marizza181 [45]
3 years ago
9

Find the fourth angle. picture below pleasae help

Mathematics
1 answer:
erastovalidia [21]3 years ago
4 0

Answer:

88°

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>Geometry</u>

  • Sum of Angles: 180(n - 2)°

Step-by-step explanation:

<u>Step 1: Identify</u>

We have a polygon, so n = 4.

  1. Substitute [SA]:                    180(4 - 2)°
  2. (Parenthesis) Subtract:        180(2)°
  3. Multiply:                                360°

This tells us the sum of all angles in the shape.

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Set up equation:                     90° + 93° + 89° + x° = 360°
  2. Combine like terms:               x° + 272° = 360°
  3. Isolate <em>x</em>:                                  x = 88°
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