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bixtya [17]
3 years ago
13

A circle has a sector with area 27pie and central angle of 120

Mathematics
1 answer:
Nat2105 [25]3 years ago
7 0

Answer:

Step-by-step explanation:

27π=120°/360°*πr^2

81π=Area of circle

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lapo4ka [179]

Answer:

h = (A - 2πr²)/(2πr)

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  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

A = 2πrh + 2πr²

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

  1. [Subtraction Property of Equality] Subtract 2πr² on both sides:                 A - 2πr² = 2πrh
  2. [Division Property of Equality] Divide 2πr on both sides:                            (A - 2πr²)/(2πr) = h
  3. Rewrite/Rearrange:                                                                                        h = (A - 2πr²)/(2πr)
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