Find x in the figure.

One angle of the triangle is 30º and another angle is 40º. what is the third angle equal?

1 answer

To find the third angle of the triangle, we can subtract the sum of the first two angles from 180 degrees, since the sum of the angles in a triangle is always 180 degrees.

So, third angle = 180º - 30º - 40º = 110º.

Therefore, the third angle is equal to 110 degrees.