Question

The ratio of the angle measures in a triangle is 1:2:3. What is the measure of the largest angle?

Answer 1

Explanation:

Let the 3 angles be x , 2x , and 3x

notice x:2x:3x = 1:2:3

we know x+2x+3x = 180

6x = 180

x = 30

so the largest angle is 3(30) or 90 degrees