Among two congruent angles, one has a measure of 60o, the measure of the other angle is ___(in degrees).
Among two congruent angles, one has a measure of 60o, the measure of the corresponding angle of another triangle will be ___(in degrees).
Complete the following statements:
(a) Two line segments are congruent if __________.
(b) Among two congruent angles, one has a measure of 70°; the measure of the other angle is __________.
(c) When we write ∠A = ∠ B, we actually mean __________.