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BARSIC [14]
3 years ago
9

I need the answer and maybe someone can tell me how to do it? Please and Thanks!! :))

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
5 0

Answer:

x = 83

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the opposite interior angles

126 = x+43

Subtract 43 from each side

126-43 = x+43-43

83 = x

UNO [17]3 years ago
4 0

Answer:

83

Step-by-step explanation:

The 126 angle is an exterior angle of the triangle.

The 43 and x angles are the two remote interior angles of the 126 angle.

<em>Theorem:</em>

<em>The measure of an exterior angle of a triangle equals the sum of the measures of the remote interior angles.</em>

x + 43 = 126

x = 83

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