Question

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Answer 1

Answer:

Step-by-step explanation:

2)

Angle ECD=78( exterior angle)

Y= 78-58=20(using exterior property of triangle)

From triangleABC

X=180-(58+20). Angle sum property

180-78

X=102

4) x is ext of triangle ABC

So ext, angle is sum of two interior opposite angles

X=25+35

X=60

B)150 is exterior so,

2x+x=150

3x=150

X= 50

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Answer 2

Answer:

Step-by-step explanation:

Angle ACB +angle BCA = angle CAD

Exterior angle thm

Therefore

25+35=x

60=x

Similarly

2x+x=150

3x=150

x= 50