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postnew [5]
3 years ago
7

ASAP answer please!!!!!!!!!!!

Mathematics
2 answers:
antoniya [11.8K]3 years ago
3 0
<h2>angle in triangle</h2>

because the triangle above is an isosceles triangle, then both angles are of the same value.

and one thing you should know, the angle above shows the straight angle.

<em>so the sum of all angles is 180</em><em>°</em>

<u>can be written like </u><u>this</u><u> </u><u>:</u>

(5x+13)°+(3x+7)°=180°

5x + 13 + 3x + 7 = 180

8x + 20 = 180

8x = 180 - 20

8x = 160

x = 20

<em>(*the third choice is correct)</em>

EleoNora [17]3 years ago
3 0
Answer= 20

The line is equal to 180 degrees (1/2 of 360 degrees) so you combine 5x+13 and 3x+7 and set it equal to 180 in order to find X which ends up being 20.
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4 0
3 years ago
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Sladkaya [172]
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3 years ago
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Answer:

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2 years ago
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