Lesson 3 Extra Practice Slope and Similar Triangles

NAME __________________________________________ DATE ____________ PERIOD _______
Lesson 3 Extra Practice
Slope and Similar Triangles
Graph each pair of similar triangles. Then write a proportion comparing
the rise to the run for each of the similar slope triangles and determine
the numeric value.
1. ABC with vertices A(1, 2), B(5, 4), and
C(5, 2); QRS with vertices, Q(4, 1), R(8, 5),
and S(8, 1)
3. RST with vertices R(9, 2), S(9, 4), and
T(6, 2); XYZ with vertices, X(3, 4), Y(3, 0),
and Z(3, 4)
2. PQR with vertices P(3, 2), Q(3, 6), and
R(7, 2); LMN with vertices, L(0.5, 2),
M(0.5, 4), and N(2, 2)
4. DEF with vertices D(5, 6), E(5, 4), and
F(4, 4); GHI with vertices, G(3, 2),
H(3, 4), and I(0, 4)
Course 3 • Chapter 3 Proportional Relationships and Slope
NAME _____________________________________________ DATE ____________________________
PERIOD ____________
Lesson 3 Homework Practice
Slope and Similar Triangles
Graph each pair of similar triangles. Then write a proportion comparing the rise to the run for each of the similar
slope triangles and determine the numeric value.
1. ∆EFG with vertices E(1,9), F(1,5), and G(2,5);
∆GHI with vertices G(2,5), H(2,1), and I(3,1)
2. ∆JNL with vertices J(–3,3), N(–3,–3), and L(5,–3);
∆KML with vertices K(1,0), M(1,–3), and L(5,–3)
3. ∆RST with vertices R(1,6), S(1,–6), and T(–3,–6);
∆UVW with vertices U(–1,0), V(–1,–3), and
W(–2,–3)
4. ∆DEF with vertices D(–6,5), E(–6,2), and F(–2,2);
∆FMW with vertices F(–2,2), M(–2,–4), and
W(6,–4)
Course 3 • Chapter 3 Proportional Relationships and Slope