Question

Find the measure of all angles of parallelogram a b c d if angle b = 60 degree?​

Answer 1

Answer:

a = 120, c = 60, d = 120

Step-by-step explanation:

We use the property that opposite angles of a parallelogram are equal.

Answer 2

Answer:

hope it will help you....

Step-by-step explanation:

b= 60 degrees

because AB is parallel to CD.

we know that the sum of the interior angles of the same side of the transversal is 180 degrees.

a+b=180

a+60= 180

a= 180-60= 120 degrees

we also known that the opposite angles of a parallelogram are equal.

a=c

c=120 degrees

b=d

d= 60 degrees