Question

find the measures of all the angles of a parallelogram. ABCD,if m< B=60°​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

In a parallelogram opposite angles are equal

therefore, angle B = angle D = 60 degrees

as AB // CD ,BC is a transversal.

angle B + angle C = 180 degrees ( interior angles)

60 + C = 180

Angle C = 120 degrees

angle C = angle A = 120 degrees

therefore,

angle A = 120 degrees.

angle B = 60 degrees.

angle C = 120 degrees.

angle D = 60 degrees.