XYZ is reflected across , as shown at right. Homework Help ✎
How can you justify that the points Y, Z, and Y′ all lie on a straight line?
What is the relationship between ΔXYZ and ΔXY’Z ? Why?
Read the Math Notes box for this lesson. Then make all the statements you can about the corresponding parts of these two triangles.
∠YZX = 90°
Remember that reflections do not change the size or shape of a figure.
Altogether, you should be able to make six statements.