Question

three angles of a quadrilateral are respectively equal to 110°, 50° and 40°. find find its fourth angle.

Answer 1

$Hey \: !!$

Your answer..

Sum of all four angles of quadrilateral = 360°

Let the fourth angle be x.

So,

$110 + 50 + 40 + x = 360 \\ 200 + x = 360 \\ x = 360 - 200 \\ x = 160$

So the fourth angle is 160°

Hope it helps...

Answer 2

the sum of all angles of the quadrilateral is 360°
let the required angle be x
110°+50°+40°+x=360°
200°+x=360°
x=360°-200°
x=160°
hope it helps
happy brainly