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Solve for x and then find the measurement of ∠B.

Solve for x and then find the measurement of ∠B.-example-1
User NduJay
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Angles

Solve for x and then find the measurement of ∠B.

As you can see in the figure, angle a and b are corresponding angles and they have the same measurements. To solve for the value of x, equate the two angle measurement to each other and simplify.

Given:

  • A = 5x - 5°
  • B = 3x + 13°

Solution:

  • 5x - 5 = 3x + 13
  • 5x - 3x = 5 + 13
  • 2x = 18
  • x = 18/2
  • x = 9

The value of x is 9. To determine the value of b, substitute the value of x to the angle measurement of b and simplify.

Given:

  • B = 3x + 13
  • x = 9

  • 3(9) + 13
  • 27 + 13
  • 40

Proving that angle a and b have the same measurements:

  • 5x - 5 = 3x + 13
  • 5(9) - 5 = 3(9) + 13
  • 45 - 5 = 27 + 13
  • 40 = 40

Answer:

  • Therefore, the value of b is 40.

Wxndy~~

User Matthew Johnson
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