If you wish to show that two triangles are similar, which statement(s) is correct?
you may choose more than one correct answer.

a)it is enough to show that one pair of corresponding angles is congruent.
b)it is enough to show that two pairs of corresponding angles are congruent.
c)it is enough to show that two pairs of corresponding sides are in the same ratio.
d)it is enough to show that all three pairs of corresponding sides are in the same ratio.
e)it is not enough to have information about only sides or only angles.