If ABCD is a quadrilateral in which AB is parallel to CD and AD=BC then prove that angleA= angleB
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AB ||CD
So angle A+angle C=180 degree.
Since AD=BC
And angle C+angleB=180 degree.
So angleA=angleB
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So angle A+angle C=180 degree.
Since AD=BC
And angle C+angleB=180 degree.
So angleA=angleB
Please mark me as brainliest
dgdgj:
how angle a .+angle c = 180°
Because AB||CD so the interior angles between the parallell lines are supplementary.
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