Prove geometric theorems10. Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; 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; the medians of a triangle meet at a point.

State Standard

CCSS

Grade Level

9 10 11 12

Learning Targets

Long Term Learning Target: I can prove the following theorems about triangles: the measures of interior angles of a triangle sum to 180°; the 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; the medians of a triangle meet at a point.

Target ID

2 733

Assessments

Supporting Targets

Discipline

Mathematics