Standard(s):
[MA2015] GEO (9-12) 10 : 10 ) Prove theorems about triangles. Theorems include measures of interior angles of a triangle sum to 180o, base angles of isosceles triangles are congruent, the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length, and the medians of a triangle meet at a point. [G-CO10]
[MA2015] GEO (9-12) 16 : 16 ) Use the properties of similarity transformations to establish the angle-angle (AA) criterion for two triangles to be similar. [G-SRT3]
[MA2015] GEO (9-12) 17 : 17 ) Prove theorems about triangles. Theorems include a line parallel to one side of a triangle divides the other two proportionally, and conversely; and the Pythagorean Theorem proved using triangle similarity. [G-SRT4]
[MA2019] GEO-19 (9-12) 32 : 32. Use coordinates to prove simple geometric theorems algebraically.
[MA2019] GEO-19 (9-12) 34 : 34. Use congruence and similarity criteria for triangles to solve problems in real-world contexts.