The interior angles formed by the sides of a quadrilateral have measures that sum to 360°.

2 answers:

8 0

Answer:

Step-by-step explanation:

2x+2x+124+124=360

4x+248=360

4x=112

x=28

stira [4]2 years ago

5 0

The answer is 90 because 360/4 (since it is a quadrilateral) is 90 degrees

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