The measures of three angles of a triangle are in the ratio of 3 : 2 : 1. The triangle is a/an:
Answer & explanation
Correct answer: option 3
The measures of three angles of a triangle are in the ratio of = 3 : 2 : 1
Let the angles of the triangle = 3x, 2x and x
So according to the rule of triangle,
3x + 2x + x = 180
6x = 180
x = 30
So the angles are = 90, 60 and 30
As one angle is 90o then the triangle is a right angled triangle.