If one angle of a triangle is equal to the sum of the other two angles, then the triangle is

If two acute angles of a right triangle are equal, then each is equal to

An exterior angle of a triangle is equal to 100° and two interior opposite angles are equal, each of these angles is equal to

Side BC of a triangle ABC has been produced to a point D such that ∠ACD = 120°. If ∠B = ∠A, then ∠A is equal to

In Δ ABC ∠B= ∠C and ray AX bisects the exterior angle ∠DAC. If ∠DAX =70°, then ∠ACB =