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4 years ago

One angle within a triangle is 76 degrees. What is the value of the exterior angle?

Mathematics

1 answer:

mrs_skeptik [129]4 years ago

4 0

Answer:

The value of the exterior angle is $104\°$

Step-by-step explanation:

we know that

The sum of the interior angle plus the exterior angle is equal to $180\°$ , because are supplementary angles.

Let

x-----> the measure of the exterior angle

$76\°+x=180\°$

solve for x

$x=180\°-76\°=104\°$

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