Question

If an angle of a parallelogram is 2/3 of its adjacent angle , What is the measure of smaller angle ?​

Answer 1

Answer:

72 degree

Step-by-step explanation:

a + b = 180

one angle is 2/3 of the other = a = 2/3b

2/3b+b = 180

5/3b = 180

b = 108

a = 2/3×108 = 72 degree