Question

# Which of the given statements is NOT true?

- m∠1 + m∠2 = m∠4
- m∠1 + m∠2 + m∠3 = 180°
- m∠2 + m∠3 = m∠4
- m∠3 + m∠4 = 180°

Hint:

### using the properties of angles of triangle check each and every option .

## The correct answer is: m∠2 + m∠3 = m∠4

### ANS :- Option C

Explanation :-

a. m∠1 + m∠2 = m∠4

(True ,Exterior angle is equals to sum of opposite interior angles)

b. m∠1 + m∠2 + m∠3 = 180°

(True , Sum of angles of the triangle is 180°)

c. m∠2 + m∠3 = m∠4

(False ) i.e NOT TRUE

d. m∠3 + m∠4 = 180°

(True, sum of angles on a straight line is 180°)

∴ Option C

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