The sum of the angles of a triangle is equal to __________(a) 270°(b) 90°(c) 180°(d) 360°I got this question by my school principal while I was bunking the class.I would like to ask this question from Angle Sum Property of a Triangle topic in portion Triangles of Mathematics – Class 9

The sum of the angles of a triangle is equal to __________(a) 270°(b)

1.	The sum of the angles of a triangle is equal to __________(a) 270°(b) 90°(c) 180°(d) 360°I got this question by my school principal while I was bunking the class.I would like to ask this question from Angle Sum Property of a Triangle topic in portion Triangles of Mathematics – Class 9
Answer» The CORRECT choice is (c) 180° Best explanation: ACCORDING to THEOREM 6.7, the SUM of the angles of a triangle is equal to 180°. As shown in the diagram below, three angles of the TRIANGLES are ∠1, ∠2 and ∠3. Hence, ∠1 + ∠2 + ∠3 = 180°