# Quadrilaterals

## Extra Questions

### Part 1

Question 1: Find the angle x

**Answer:** We know that, angle sum of a triangle = 180⁰

So, `60° + 35° + x = 180°`

Or, `95° + x = 180°`

Or, `x = 180° - 95° = 85°`

Question 2: Find the angle x

**Answer:** We know that, angle sum of a triangle = 180⁰

So, `65° + 45°+ x = 180°`

Or, `110°+ x = 180°`

Or, `x = 180° - 110° - 70°`

Question 3: Find the angle x

**Answer:** We know that, angle sum of a triangle = 180⁰

So, `62°+ 74° + x = 180°`

Or, `136° + x = 180°`

Or, `x = 180° - 136° = 44°`

Question 4: Find the angle x

**Answer:** We know that, angle sum of a triangle = 180⁰

So, `62° + 72°+ x = 180°`

Or, `139°+ x = 180°`

Or, `x = 180°- 139°= 41°`

Question 5: Find the angle x

**Answer:**We know that, angle sum of a triangle = 180⁰

So, `84°+ 55°x = 180°`

Or, `139° + x = 180°`

Or, `x = 180°- 139°= 41°`