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A quadrilateral has angles that measure 125°, 115°, and 65°.

What is the measure of the fourth angle?

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choixongdong

Answer:

The measure of the fourth angle = 55°

Step-by-step explanation:

Sum of all 4 interior angles in a quadrilateral  = 360°

Let x = the measure of the fourth angle

x + 125°+ 115°+ 65° = 360°

x + 305° = 360°

x = 360° - 305°

x = 55°

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