Question

two angles A and B form a liner pair. if A =140 and B =4x + 20,find the value of x and hence the angle B.​

Answer 1

Answer:

We know that here that angle A + angle B = 180 degree

Then we can state that angle B = 180- angle A

here angle A is given: 140

then Angle B= 180-140= 40

therefore, 4x+20 = 40

4x = 40-20

4x= 20

x= 20/4= 5

therefore angle B = 40 degree and x=5

Step-by-step explanation: