Question

measure of one angle of a parallogram is 80 . find the other three angles​

Answer 1

Step-by-step explanation:

parallelogram ABCD

AB is parallel to DC and

AD is parallel to CB

if angle A = 80 degrees

then angle C = 80 degrees

( opposite angles of a parallelogram are equal .)

if angle A = 80 degree

angle A + angle B = 180 degrees

( adjacent angles of a parallelogram are supplimentary )

80 + angle B = 180

angle B = 180 - 80

angle B = 100 degrees.

and

angle D = 100 degrees.

( opposite angles of a parallelogram are equal .)