Question

in parellelogram ABCD angle A=x° and angle b=(3x+20)°then find x

Answer 1

Answer:

 A+B = 180 (SUM OF ADJECANT SIDE OF PARALLELOGRAM = 180)

==> X+3X+20 = 180

==> 4X = 160

==> X = 40

Answer 2

if angle A is equal to X and angle b is equal to 3 X + 20 degree then the value of x will be angle A + angle b is equal to 180 degree as they are co interior angles so angle A + angle b is equal to X + 3 X + 20 is equal to 180 degree so 4 x + 20 degree is equal to 180 degree so 4 x is equal to 180 degree minus 20 which is equal to4x=160degree
so,x=160/4
x=40