Mathematics | Course : Model Geometry (Traditional Pathway)
Domain - Similarity, Right Triangles, and Trigonometry
Cluster - Prove theorems involving similarity.
[GEO.G-SRT.B.4] - Prove theorems about triangles. Theorems include: a line parallel to one side of a triangle divides the other two proportionally, and conversely; the Pythagorean Theorem proved using triangle similarity.
- Pythagorean Theorem
For any right triangle, the sum of the squares of the measures of the legs equals the square of the measure of the hypotenuse.
[GEO.G-CO.C.10] -
Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; base angles of isosceles triangles are congruent, and conversely prove a triangle is isosceles; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.
[GEO.G-SRT.A.3] -
Use the properties of similarity transformations to establish the Angle-Angle (AA) criterion for two triangles to be similar.