Figure RST is reflected about the y-axis to obtain figure R’S’T’:
Which statement best describes the relationship between the two figures?
A. Figure RST is bigger than figure R’S’T’.
B. Figure RST is congruent to figure R'S'T'.
C. The measure of angle R is equal to the measure of angle S’.
D. The measure of angle R is equal to the measure of angle T’.
Flipping a graph keeps the figures size the same, so it isn't A. Flipping it doesn't rotate the angles either(R is equal to R', S to S' etc.), so the answer is B.
