Level 20

Author:: Colin Beveridge

Level 20 of http://euclidthegame.org/Level20.html asks you to construct the outer tangent to two given circles (here, a, with centre A; and b, with centre B). Here's how I'd do it.

New Resources

If Pythagoras Had Regular Heptagons...
Pi Made of Functions
Dilations Part 2: What Do You Notice?
Dilations Part 3: What Do You Notice?
Inner and Outer Pentagon Points and Conics

Discover Resources

addition of fractions
Ambiguous Case - Area
Atividade 4
Mastery Check 1. Copy Angle yasmin
Geometry Week 3 Assessment

Discover Topics

Arithmetic Operations
Probability
Linear Equations
Congruence
Distributions