Question

the the three angle of quadrilateral are 65 degrees celsius 55 degrees and 130 degree find it fourth angle

Answer 1

the Fourth angle would be 110 degree

Answer 2

total sum of angles of a quadrilateral is 360degree so three angles are given we can find other one.
$65 + 55 + 130 + x = 360$
so
$250 + x = 360$
$x = 360 - 250 = 110$