The product of the slopes of perpendicular lines is always

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

00 points ! missy’s rotation maps point k(17, –12) to k’(12, 17). which describes the rotation? 270° counterclockwise rotation 90° counterclockwise rotation 90° clockwise rotation 180° rotation

Abcd is a square. what is the measure of angle bac