A reflection is a transformation that maps every point in △ABC over a line, MN←→− , to △A′B′C′ so that________________ and_________________________ .
ANSWER CHOICES
AB¯¯¯¯¯ and A′B′¯¯¯¯¯¯¯ are parallel
the intersection of BB′¯¯¯¯¯¯ and MN←→− form a right angle
△ABC≅△A′B′C′
△ABC is a right triangle