To find the third angle of the triangle, we can subtract the sum of the given angles from 180º, because the sum of the angles in a triangle is always 180º.
So, the sum of the given angles is 35º + 40º = 75º.
Now, let's subtract the sum of the given angles from 180º to find the third angle:
180º - 75º = 105º
Therefore, the third angle, x, is 105º.
Find x in the figure.
one angle of the triangle is 35º, another angle is 40º. what is the third angle, x?
1 answer