Question

2. In a parallelogram ABCD angleA = 100°. Find the
measure of each of the angles.​

Answer 1

it's your ans-

$In \: a \: parallelogram \: ABCD$

$angle A = 100°$

$Angle \: A \: and \: \: angle \: B \: is \: \: co-interior \: angle ..$

$so, Angle A + angle B = 180°$

$i.e \: \: angle B = 80°$

$now \\ the \: \: opposite \: angles \: of \: parallelogram \: is \: equal.$

$Therefore,$

$Angle B = Angle D$

$Angle A = Angle C$

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