In the given figure AC=BC and
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In the given figure AC=BC and
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Answer:
Because AC=BC(Given)
Therefore,angle CAB=angleCBA=30°(Angle opposite to equal sides are equal)
AngleACB=180-(angleCAB+angleCBA)
AngleACB=180-(30+30)
AngleACB=180-60
AngleACB=120°
AngleACB=AngleECD=120°
x=120°