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OpenStudy (anonymous):
ABCD is a parallelogram. Angle C is equal to (x + 5) degrees and angle D is equal to (x + 20) degrees. Find x. Is this correct: x + 5 + x + 20 = 180 2x + 25 = 180 2x = 155 x = 77.5
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jhonyy9 (jhonyy9):
how many is the sum of angles of a parallelogram ?
jhonyy9 (jhonyy9):
how many is the sum of angle of a triangle ?
OpenStudy (anonymous):
360 and consecutive angles = 180, right? :/
jhonyy9 (jhonyy9):
yes is 360 than you need in your calculi 360 and not 180 ok ?
jhonyy9 (jhonyy9):
|dw:1369590401153:dw|
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jhonyy9 (jhonyy9):
yes is right too the same that consecutive angles are 180
jhonyy9 (jhonyy9):
than this mean D + C = 180
OpenStudy (anonymous):
Just checked and yeah it was correct.
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