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Crazy boy [7]
3 years ago
10

Find the value of x PLEASE EXPLAIN

Mathematics
2 answers:
dedylja [7]3 years ago
7 0

We can say that:

  • In the first triangle, x = 57°
  • In the second triangle, x = 111°

<h2>Let's go!</h2>

We must know that the sum of all the internal angles of a triangle is equal to 180°. So, just solve an equation to determine x in each triangle.

<h3>First triangle:</h3>
  • 67 + 56 + x = 180 → Sum:
  • 123 + x = 180 → We move 123 to the other side, changing its signal.
  • x = 180 - 123 → Subtract:
  • <u>x = 57°</u>
<h3>Second triangle:</h3>
  • 22 + 47 + x = 180 → Sum:
  • 69 + x = 180 → We move 69 to the other side, changing its signal.
  • x = 180 - 69 → Subtract:
  • <u>x = 111°</u>

<u>________________</u>

<em>Hope this helps! Good studies! </em>☺

Wewaii [24]3 years ago
6 0

Answer:

x = 57, x = 111

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180, that is

x + 67 + 56 = 180

x + 123 = 180 ( subtract 123 from both sides )

x = 57

---------------------------------------------------------------------

Similarly

x + 47 + 22 = 180

x + 69 = 180 ( subtract 69 from both sides )

x = 111

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