Question

Three angles of a quadrilateral are 68,74,108. Find the fourth angle

Answer 1

110...

Because we know that sum of all angles of quadrilateral is 360 so

68+64+108+x=360

so 250+x=360

x=360-250

=110

Answer 2

Sum of all angle of quadrilateral is 360

Formula ⇒ ∠a + ∠b + ∠c + ∠d = 360

so ∠ a = 68 , ∠ b = 74 , ∠ c = 108 and ∠ d = x

According to question

                               

                      68 + 74 + 108 + x = 360

                      250 + x = 360

                                 x  = 360 - 250

                                     = 110 answer