CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

If the angles of a quadrilateral are 80,110,70, then the fourth angle will be ______.


  1. ∠A = 40°, ∠B = 130°, ∠C = 90°, ∠D = 60°

  2. ∠A = 70°, ∠B = 110°, ∠C = 80°, ∠D = 110°

  3. ∠A = 80°, ∠B = 120°, ∠C = 60°,  ∠D = 100°

  4. ∠A = 70°, ∠B = 130°, ∠C = 60°, ∠D = 90°


Solution

The correct option is C

∠A = 80°, ∠B = 120°, ∠C = 60°,  ∠D = 100°


Sum of angles of a quadrilateral is 360.
Let the unknown angle be x
80+110+70+x = 360
260+x = 360
x = 360-260
x100

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image