Maths / Constructions / Construction of Triangle using ASA Criteria

QUESTION
 

In DeltaABC, if AB = BC and large angle B =80^0  then angleC = ________

OPTIONS
A. 

50

B. 

100

C. 

130

D. 

30

Right Option : A

EXPLANATION
Explain TypeExplanation Content
Text

large because , , AB=BC

large angle B=angle C (angles opposite to equal sides are equal)

large \ angle A+angle B+angle C=180^0

large 2angle C+80^0=180^0

large angle C=50^0.

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