Question

Three angles of a quadrilateral are 76 114 and 86 and forth find ?

Answer 1

Answer:

84

Step-by-step explanation:

The sum of all the angles of a quadrilateral is 360.

Take the fourth unknown angle to be x.

Then solve the following:

x + 76 + 114 + 86 = 360

x + 276 = 360

x = 360 - 276

x = 84

So the fourth angle is 84.

To confirm your answer, you can calculate all the angles (except 360) and check if they add up to 360.

Answer 2

Answer : Let the forth angle be x angle

$76 + 114 + 86 + x = 360$

$276 + x = 360$

$x = 360 - 276$

$x = 84$