Question

find the unknown size of angles

Answer 1

Answer:

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Answer 2

Answer:

z=140, x=100 and y=40

Step-by-step explanation:

Angle OCD+60=180(Sum of adj. angles on a str. line=180)

or, OCD=180-60

or, OCD=120

20+120+COD=180(angles sum of Triangles=180)

or, COD=180-140

or, COD=40

z+40=180

or, z=180-40

or, z=140

140+60+80+AEO=360(angles sum of Quadrilaterals=360

or, AEO=360-280

or, AEO=80

x+80=180(adj. angles on a str. line is 180)

or, x=180-80

or, x=100

z+ BOE=180(adj. angles on a str. line=180

or, BOE=180-140

or, BOE=40

40+x+y=180

or, 100+y+40=180(angles sum of triangle=180

or, y=180-140

or, y=40

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