Question

Figure RST is reflected about the y-axis to obtain figure R′S′T′:

A coordinate plane is shown. Triangle RST has vertices R at negative 5 comma 1, S at negative 6 comma 4, and T at negative 1 comma 5. Triangle R prime S prime T prime has vertices R prime at 5 comma 1, S prime at 6 comma 4, and T prime at 1 comma 5.

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′.

Answer 1

can someone plz help