Question

three angle of quadrilateral are 75 degree, 90 degree and 75 degree find fourth angle​

Answer 1

Answer:

the third angle will be 120°

Answer 2

sum of all interior angles in a quadilateral=360

let the fourth angle be x

then,

75+90+75+x=360

240-x=360

x=120

therefore,

fourth angle is 120°