I will mark brainlist and 5 stars, please help.

Which of these triangle pairs can be mapped to each other using two reflections?

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.