Geometric Proofs On Lines and Angles
Aligned To Common Core Standard:
High School Congruence- HSG-CO.C.9
Printable Worksheets And Lessons
- Angle Proof Step-by-step
Lesson - It's a great idea to review the meaning of supplemental,
complementary, and opposite angles before looking at this section.
- Guided Lesson -
The first one is a tricky one. It actually gets easier as it goes
- Guided Lesson Explanation
- This is setup up as an abbreviated explanation. We expect you
to understand your basic definitions of angles.
- Practice Worksheet -
After you complete this, you should feel very accomplished with
this skill and begin to understand the power of knowing, just one
- Matching Worksheet
- Match the angles to what they are asking you for.
- Coordinate Geometry Proofs Worksheet
Five Pack - With just a dab of information, you need to prove
midpoints, angles, and geometric shapes exist.
- Direct Euclidean Proofs Worksheet
Five Pack - We are looking for abbreviated proofs here.
- Proofs in the Coordinate Geometry
Worksheet Five Pack - The coordinate plane does make this a
bit easier than the other sets.
View Answer Keys- All the answer keys in one file.
The first one focuses on angles, the second on lines and angles. The third one puts it all together.
We start to really concentrate on numerical angles here for the first time.
Math Skill Quizzes
This is applied geometric at it's best! These problems have endless real world connections.