Question

find the value of x​

Answer 1

Answer:

lets name the point with angle x° as 'A'

point with angle 2x° as B

point with angle (x+20)° as C

amd the last point as D

Now,

angle D = 180°-120° = 60°

also,

x+2x+x+20+60=360°. (angle sum property of a quadrilateral)

4x+80=360

4x=280

x=70

therefore

angle a =70°

angle b =140°

angle c =90°

angle d =60°

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