Determine the value of x in the diagram below. Justify your reasoning.

the value of x is 70

Step-by-step explanation:

first in (part140)

let, the other angle be a

140°+a=180°(straight line)

a=40°

now,

in(part150)

let, the other angle be b

150°+b=180°(straight line)

b=30°

then,

a+b=x(sum of 2 opposite interior angle is equals the exterior angle)

40+30=x

70=x

so x is 70°

idk im srry

step-by-step explanation: