Question

5. In quadrilateral ABCD <A-60° , B=90°, C-80° .<D=?​

Answer 1

Answer:

the sum of angles of quadrilateral=360 degree

60 +90+80+ x=360

230+ x=360

x=360-230

x=130

Answer 2

Step-by-step explanation:

∠A +∠B +∠C+ ∠D = 360°

60° + 90° + 80° + ∠D = 360°

230° + ∠D = 360°

∠D = 360° - 230°

∠D = 160°

Please mark my answer as the brainliest