What is the measure of the missing angle?

132°

48°

42°

222°

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9