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3 years ago

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:

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.

Theorem:

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

x + 43 = 126

x = 83

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