Question

please answer 19th question...

Answer 1

$\bold{\boxed{Hoi!}}$

The Value of
(b+2c-d) = $\textbf{180°}$

$\bold{\underline{Solution-}}$

Since, line l and m intersect each other,

therefore, c = d and b = a [vertically opposite angles]

Now,

A.T.Q-

b+2c-d = b+ 2c-c = b+c

Since l is a straight line

therefore

b+c=180° [Linear Pair axiom]


$\bold{\underline{Thanks!}}$
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