Quadrilaterals

Extra Questions

Question 1: Find the angle x

Class 8 math Quadrilaterals additional question1

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

Class 8 math Quadrilaterals additional question2

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

Class 8 math Quadrilaterals additional question3

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

Class 8 math Quadrilaterals additional question4

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

Class 8 math Quadrilaterals additional question5

Answer:We know that, angle sum of a triangle = 180⁰
So, `84°+ 55°x = 180°`
Or, `139° + x = 180°`
Or, `x = 180°- 139°= 41°`



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