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One triangular face of the prism shown has an interior angle with a measure of 65° and an exterior angle with a measure of 120°. What is the measure of the marked interior angle?
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One triangular face of the prism shown has an interior angle with a measure of 65° and an exterior angle with a measure of 120°. What is the measure of the marked interior angle?

One triangular face of the prism shown has an interior angle with a measure of 65° and-example-1
User Ravnsgaard
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x+120=180
x=180-120=60
\text{?}+65+60=180
?=180-65-60
?=55

User OlivierM
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