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pantera1 [17]
3 years ago
12

Subject:Mathematics ​

Mathematics
2 answers:
arsen [322]3 years ago
7 0
<h2><u>Question</u> :</h2>

The angle measure of a triangle are shown in the diagram.

What is the value of x?

<h2><u>Answer</u> :</h2>

  • value of x is 28°

<h2><u>Explanation</u> :</h2>

<h3>Given :</h3>

  • ∠A = 50°
  • ∠B = (2x)°
  • ∠C = (3x - 10)°

<h3>To Find :</h3>

  • Value of x = ?

<h3>Solution :</h3>

As, In a triangle measure of all three angles is always 180°.

\sf : \implies \angle A + \angle B + \angle C = 180\degree

\sf : \implies 50\degree + (2x)\degree + (3x - 10)\degree = 180\degree

\sf : \implies 50 + 2x +  3x - 10 = 180\degree

\sf : \implies 40 + 5x = 180\degree

\sf : \implies 5x = 180\degree - 40\degree

\sf : \implies 5x = 140\degree

\sf : \implies x = \cancel{\dfrac{140\degree}{5}}

\sf : \implies x = 28\degree

\large \underline{\boxed{\bf{x = 28\degree}}}

Hence, value of x is 28°.

posledela3 years ago
3 0

Answer:

x=28°

Step-by-step explanation:

2x+3x-10+50=180

5x+40=180

5x=180-40

5x=140

x=140/5

x=28°

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