Question

B) Attempt the following
Find x​

Answer 1

x = (360-50-90-80)°

= 140°

since s of all interior angles in polygon are 360°

Answer 2

Answer:

Here, The value of 4th angle of the given quadrilateral(square) is 140°.

Step-by-step explanation:

Here, As given in our question,

=As it is a quadrilateral(square)

So,=80°+50°+90°+x=360° (Sum of all angles of a quadrilateral is 360°)

=220°+x=360°

=x=360°-220°

=x=140°

So, Here The value of x is 140°.

Thank you.