CK-12 Foundation
Ck 12: Geometry: Triangle Proportionality Grades 9 10
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to determine if lines in triangles are parallel and find missing lengths using the Triangle Proportionality Theorem.
CK-12 Foundation
Ck 12: Geometry: Triangle Proportionality Grades 8 10
[Free Registration/Login may be required to access all resource tools.] Use the Triangle Proportionality Theorem and its converse.