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Ksenya-84 [330]
3 years ago
7

What is the value of x

Mathematics
1 answer:
pochemuha3 years ago
5 0

This is the isosceles triangle. Therefore, the angles at the base are congruent.

We know that the sum of the measures of the angles in a triangle is 180°.

Therefore we have the equation:

38^o+x^o+x^o=180^o

38^o+2x^o=180^o        <em>subtract 38 from both sides</em>

2x^o=142^o       <em>divide both sides by 2</em>

x^2=71^o

<h3>Answer: x = 71.</h3>
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Step-by-step explanation:

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Interval Notation:

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Set-Builder Notation:

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