Brinyco Brinyco
  • 09-01-2016
  • Mathematics
contestada

Quadrilateral ABCD is a parallelogram in which angle B = 100 degrees angle A + angle B =

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Luckyshamrock Luckyshamrock
  • 10-01-2016
180° because the two angles at each end of a line (the internal opposite angles of 2 parallel lines) equal to 180°

e.g.
Hope thats clear enough!
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