In figure, AB = AC and = 115^ . Find ? - Vidyadip

MCQ

In figure, $AB = AC$ and $\angle\text{ACD} = 115^\circ.$ Find $\angle\text{A}?$

A
$115^{\circ}$
✓
$50^{\circ}$
C
None of these
D
$60^{\circ}$

✓

Answer

Correct option: B.

$50^{\circ}$

$C =180^{\circ}-115^{\circ}=65^{\circ} AB = AC$ And hence $\angle B =\angle C =65^{\circ}$. Then $A =180^{\circ}-2 \times 65^{\circ}=50^{\circ}$

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