The sum of the angles in a triangle is always 180 degrees. Using this information, you can set up the equation:
3x + 4x + 5x = 180
12x = 180
x = 15
Now, plug x back into the expressions for the angles:
3(15) = 45
4(15) = 60
5(15) = 75
Therefore, the smallest angle is 45 degrees.
The angles of a triangle measure 3x, 4x, and 5x. using the triangle angle sum theorem, find the measure of tehe smallest angle in this triangle
45
40
50
75
1 answer