Question

11. Find the angle measure x in the following figures:
(ii)​

Answer 1

SoluTion :-

In the figure,

1st angle = 70°

2nd angle = 60°

3rd angle = 90° (∵ 180 - 90° = 90°)

4th angle = 90° (∵ 180 - 90° = 90°)

5th angle = x

∵ Sum of exterior angles of a pentagon = 360°

∴ 70° + 60° + 90° + 90° + x° = 360°

Or, 310° + x° = 360°

Or, x° = 360° - 310°

Or, x° = 50°

Thus, answer = 50°