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Find the missing angle measure of the triangle below. Show your work or provide an explanation.

Find the missing angle measure of the triangle below. Show your work or provide an explanation. class=

Verified Answer :

A triangle always adds up to 180.
Knowing that we add up the angles 45 and 80 to get 125
Then you do 180 - 125 to get 55
So the angle would be 55.

plague122

the equation for finding missing angle measures is ∠1+∠2+∠3=180° so you put 45 and 80 into the equation: 45+80+∠3=180 then you just subtract 45 and 80 from both sides to get: ∠3=55 so your answer is 55°

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