Question

The measure of 3 angle of a quadrilateral are 65degree, 85 degree and 104 degree .find the fourth angle
?

Answer 1

Answer:

106 degrees

Step-by-step explanation:

let the angle be x

Sum of all angles of a quadrilateral is 360 degrees. Hence by angle sum property of a quadrilateral

65degrees+85degrees+104degrees+x=360 degrees

x=106 degrees

Answer 2

Answer:

Given, ABCD is a quadrilateral.

Three angles are, 85°, 104°, 65°.

Now,

According to question,

65°+85°+104°+4th angle=360°( angle sum property)

so,

254°+4th angle=360°

4th angle=360°-254°

=106°