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JulijaS [17]
3 years ago
9

The angles of a quadrilateral measures 80 degrees 100 degrees 100 degrees in this order. What kind of quadrilateral has this sha

pe? How do you know?
Mathematics
1 answer:
bija089 [108]3 years ago
8 0
A parallelogram

Because...
-opposite angles are congruent
-four sides
-angles must equal 360
       100 + 100 +80 + y = 360

       280 + y = 360

       y = 80
-the angle we don't know is 80 degrees


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