2 years ago

A side of the triangle below has been extended to form an exterior angle of 128° . Find the value of x.

Mathematics

2 answers:

AfilCa [17]2 years ago

8 0

Answer:

Step-by-step explanation:

The sum of adjacent angles traversed by a line must equal 180 degrees.

128+x=180

x=52

rosijanka [135]2 years ago

7 0

Answer:

x=52 degrees

Step-by-step explanation:

x=180-128=52 degrees because x is supplementary to 128 degrees.

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A side of the triangle below has been extended to form an exterior angle of 128° . Find the value of x.​

A side of the triangle below has been extended to form an exterior angle of 128° . Find the value of x.