Question

in Parallelogram ABC.If angleA=100 degree , then angleB = _____​

Answer 1

Answer:

80°

bcuz

sum of adjacent angles of a parallelogram is 180°

Answer 2

Answer:

B=80°

Step-by-step explanation:

Mistake in question : in parallelogram ABCD ( Beacuse parallelogram have 4 angles)

A+B=180° --------(sum of adjacent angles of a parallelogram is 180°)

100°+B=180°

B=180°-100°

B=80°

Plz mark as brilliant