Bae1235 Bae1235

10-03-2015
Mathematics

Answered

The angles of a quadrilateral measures 80 degrees 100 degrees 100 degrees in this order. What kind of quadrilateral has this shape? How do you know?

Answer :

jtlamarr jtlamarr

11-03-2015

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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