Question

find the value of x and y in the follwing figure

Answer 1

in first figure x= 30( because sum of all interior angles of a triangle is 180 degree)

and in second figure x = 55.(same reason)

Answer 2

Answer:

x=30, y=55

In the first one, by using Angle sum property of a triangle- 80+70+x= 180

150+x=180

x=180-150

x=30

in the second one

50+75=x (the sum of alternate angles are equal to the exterior angle)

50+75=x

125=x

x=125

x+y=180 (linear pair)

125+y=180

y=180-125

y= 55

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