[scheduled:: 2025-01-16]

Problems Workshop

Links and useful resources

• gr10's Geometry >>>START HERE<<<
• AoPS Alcumus
• Handwritten math converter
• Big Ideas Geometry textbook
• GeoGebra Online Geometry Constuction Tool
• Two-column math templates
• Proofs unit slides from mathgiraffe.com
• Proofs unit printables for two-column proofs

Concept summary and connections

• Median triangles are not congruent
• putting all computation work into the table
• Labeling all referenced variables in the diagram

Worked examples

• Prove that the triangles formed by drawing median lines in an arbitrary triangle are not necessarily congruent
• Finding formulas: If it asks for a formula in terms of something, then that's the only thing your formula can reference. "Find the area of a hexagon with side length $s$" means that the only variable your formula can use is $s$, so anything else you need must be converted into an expression of s.
  • Find a formula for the area of an octagon with side length $x$.

Media resources

• Youtube search for "Median triangles are not congruent"
• Youtube search for "putting all computation work into the table"
• Youtube search for "Labeling all referenced variables in the diagram"

Guided practice

• Prove that medial triangles are not necessarily congruent
• Habit: Stop and look before you compute. What is formula for area of equilateral triangle?

Homework

• #hw (geom-gr10) IN CLASS Alcumus (gr10) 2025-01-16