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Helppppppppp pleaseeeeeeeee

In the diagram AB is parallel to DC.
Angle ABC = 70°
Angle ACD = 55°
Not drawn accurately
Show that triangle ABC is isosceles.
You must give reasons in your working.

Helppppppppp pleaseeeeeeeee In the diagram AB is parallel to DC. Angle ABC = 70° Angle-example-1
User Rwky
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1 Answer

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User Ravuya
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