Question

find the value of x in figure​

Answer 1

Step-by-step explanation:

Let the given triangle be ABC.

$\rm Where \: \angle{A} = x \: and \: \angle B = 90°.$

$\rm \angle{C} + 130° =180° \: \: (linear \: pair)$

$\rm \angle{C} =180° - 130° \:$

$\rm \angle{C} =50° \:$

We know that –

Sum of the three interior angles of a triangle = 180°.

$\rm \angle A + \angle B + \angle C = 180°$

$\rm x + 90° + 50° = 180°$

$\rm x + 140° = 180°$

$\rm x = 180° - 140°$

$\rm x = 40°$

I hope it is helpful