Question

In a parallelogram abcd, angle d= 140.find the measures of angle a and angle b.

Answer 1

Answer:

angle a = 40 , angle b = 140

Step-by-step explanation:

In a parallelogram opposite angles are equal i.e.

angle a = angle c                ;             angle b = angle d

and also sum of adjacent angles = 180.

angle a + angle b = 180      ;             angle c + angle d = 180

So,

angle b = angle d

             =  140

and

angle a + angle b =   180

angle a + 140        =   180

angle a                  =   180 - 140

angle a                  =    40.  

Answer 2

Hopeful this is helpful for you