So you've come up with a conjecture using your peerless inductive reasoning skills and you wish to show that your conjecture is true beyond all uncertainty? Well, then you'll need a bit of deductive reasoning. Also, there's a secret tunnel between my class and Mrs. French's class.

Euclid as the Father of Geometry

Khan Academy. Duration_8_22

SpringBoard_P24_Q14

Duration_3_10

Logical argument and constructions. The student uses the process skills with deductive reasoning to understand geometric relationships. The student is expected to:

Geometry 4(A) Distinguish between undefined terms, definitions, postulates, conjectures, and theorem