Suppose that m∠c = m∠f. which other fact would guarantee that the triangles are similar? a) cb fe = ab de b) m∠b = m∠e c) m∠a + m∠b + m∠c = 180° d) 180° - m∠d = m∠e + m∠f

The correct option is B.

Step-by-step explanation:

Given information: .

Two triangles are similar if their corresponding angles are same or their corresponding sides are proportional.

Case 1: According to the AA rule similarity, two triangles are similar if two corresponding angles are same.

In triangle ABC and triangle DEF, if

then, by AA rule triangle ABC and  triangle DEF are similar. Therefore option B is correct.

Case 2: According to the SAS rule similarity, two triangles are similar if two corresponding sides are proportional and the including angles are same.

In triangle ABC and triangle DEF, if

then by SAS  rule triangle ABC and  triangle DEF are similar. Therefore option A is incorrect.

answer: (1,3) and (-2,0) i think.