## Extra Questions Part 3

Question 1: Find the angle y

Answer: We know that angle sum of a quadrilateral = 360⁰
So, 85° + 95° + 100° + y = 360°
Or, 280° + y = 360°
Or, y = 360°- 280° = 80°

Question 2: Find the angle x

Answer: We know that angle sum of a quadrilateral = 360⁰
So, 95°+ 75°+ 110°+ x = 360°
Or, 280°+ x = 360°
Or, x = 360°- 280°= 80°

Question 3: Find the angle x

Answer: We know that angle sum of a quadrilateral = 360⁰
So, 65° + 120° + 90°+ x = 360°
Or, 275° + x = 360°
Or, x = 360° - 275°= 85°

Question 4: Find the angle x

Answer: We know that angle sum of a quadrilateral = 360⁰
So, 65°+ 70°+ 120°+ x = 360°
Or, 255° + x = 360°
Or, x = 360°- 255°= 105°

Question 5: Find the angle x

Answer: We know that angle sum of a quadrilateral = 360⁰
Or, 185°+ 2x = 360°
Or, 2x = 360°- 185°= 175°
Or, x = 175°÷2 = 87.5°