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Unit 12 of 20
Law of Cosines
The generalized Pythagorean theorem.
Every topic follows the curriculum standard
Learn→See→Try→Explain→Verify→Challenge→Transfer→Master
Topics in this unit
4 topics. Each card opens a full topic workspace and supports all eight learning actions.
The Law Itself
Pythagoras extended
Solving Triangles
SSS and SAS
Heron's Formula Connection
Area from sides
Three-pathway connections
Study this unit at three depths — current-grade mastery, advanced thinking, and competition mathematics.