If each angle of a triangle is less than the sum of the other two, show that the triangle is acute angled.
The angles of a triangle are arranged in ascending order of magnitude. If the difference
between two consecutive angles is 10°, find the three angles.
Two angles of a triangle are equal and the third angle is greater than each of those angles
by 30°. Determine all the angles of the triangle.
If one angle of a triangle is equal to the sum of the other two, show that the triangle is a