Question

3 exterior angles of a Quadrileteral are 60,80, 100degrees
Find all the angles of that quadrilateral ​

Answer 1

Answer:

let fourth angle be x

A+B+C+D =360°

60°+80°+100°+ D =360°

240°+D =360°

D= 360°-240°= 120°

therefore 120° is the fourth angle