Question

three angles of A quadrilateral are 110 ,70 90 the other angle is​

Answer 1

Answer:

90 degrees

Step-by-step explanation:

Let the angle be x.

Sum of angles of quadrilateral = 360

x + 110 + 70 + 90 = 360

x + 270 = 360

x = 90 degrees

Answer 2

Answer:

let the forth angle be x

we know that sum of angles of quad. is 360

then,

110+70+90+x =360

270 +x=360

x= 360-270

=90