Start by identifying the corresponding vertices on the graph.
Angles: ∠J ≅ ∠C, ∠K ≅ ∠D, ∠L ≅ ∠E Sides: JK/CD = KL/DE = LJ/EC
Practice makes perfect
Two polygons are similar if their corresponding angles are congruent and if the lengths of the corresponding sides are proportional. We are given that â–³ JKL ~ â–³ CDE.
We can identify the pairs of congruent angles by matching them using the order they appear in the similarity statement.
ccccc
J & K & L
↓ & ↓ & ↓
C & D & E
The extended proportion that relates the corresponding sides for the similar polygons is created by writing a series of ratios for the corresponding side lengths. Let's list the pairs of congruent angles and write the ratios of the corresponding side lengths in a statement of proportionality.
