12. Which of the following is true about proportion?
A Proportion is the sum of two ratios.
B. Proportion is the comparison of two ratios.
C. Proportion is part of a whole.
D. Proportion is the two ratios are equal
13. If two corresponding angles of two
triangles are congruent, then we could
say that...
A the triangles are identical.
B. the triangles are similar
C. the triangles are congruent.
D. the length of the corresponding sides
are equal​