Q. 24.1( 18 Votes )

If the angles of a triangle are in the ratio 1 : 2 : 3, determine three angles.

Answer :

Given that the angles of the triangle are in ratio 1 : 2 : 3

Let, the angles be a, 2a, 3a


Therefore, we know that


Sum of all angles if triangle is 180o


a + 2a + 3a = 180o


6a = 180o


a =


a = 30o


Since, a = 30o


2a = 2 (30o) = 60o


3a = 3 (30o) = 90o


Therefore, angles are a = 30o, 2a = 60o and 3a = 90o


Hence, angles are 30o, 60o and 90o.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Angle Sum Property of Triangle40 mins
Quiz | Lines and Angles43 mins
Quiz | Lines and Angles40 mins
NCERT | Angle Sum Property44 mins
Matter and Its Classification34 mins
Lines and Angles45 mins
NCERT | Intersecting and Non Intersecting lines)41 mins
NCERT | Discussion on Lines And Angles45 mins
Know About Transversal and Parallel lines42 mins
Quiz on Lines and Angles26 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses