Question

The measures of the angles of a triangle are 1:2:3. What is the measure of each angle?

Answer 1

So this is what I did.

Since I know that it is a ratio, the numbers need to equivalent to 1:2:3. Therefore, I set up an equation: x + 2x + 3x = 180
6x=180
x=30

1:2:3 => 1(30) , 2(30) , 3(30 => 30:60:90

The sum of the angles of a triangle is 180 so we can check this:
30 + 60 + 90 = 180 degrees

Answer 2

Looks good to me :)

Answer 3

Thank you :)