Question

please anyone give me answer​

Answer 1

Answer:

60°

Step-by-step explanation:

if AB=AC, then angles opposite to equal sides are equal :

$\therefore ABC=ACB$

Let the base angles of ∆ ABC = y

$\implies$ $120+y=180$(linear pair)

$\implies$ $y=180-120$

$\implies$ $y=60°$

Now, in ∆ ABC :

$\implies$ $y+y+x=180°$ (angle sum property)

$\implies$ $60+60+x=180°$

$\implies$ $120+x=180°$

$\implies$ $x=180-120$

$\implies$ $\boxed{x=60°}$

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