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Two of the angles in a triangle measure 18° and 72°. What is the measure of the third angle?
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Two of the angles in a triangle measure 18° and 72°. What is the measure of the third angle?

User Dean Oliver
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1 Answer

2 votes

Answer:

Explanation:

the sum of angles in a triangle is 180 degrees

18 + 72 + X = 180

90 + X = 180

X = 180 -90

X = 90

User James Westman
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