Geometry 5.5a, Write an Indirect Proof & 2 Theorems

An explanation of indirect proofs and how we begin by assuming that the conclusion is false. Showing that an assumption leads to a contradiction. Indirect proofs are also called proof by contradiction. The steps to writing an indirect proof and hints and clues of what to look for when writing an indirect proof. Writing an indirect proof that a right triangle can't have an obtuse angle. Two theorems for angle-side relationships in triangles. An example of what would be considered indirect reasoning. Using our second theorem in a proof to prove one side of a triangle is greater than another. Writing angle measures in order from smallest to largest and writing side lengths in order from shortest to longest.

Geometry 2.2a, Conditional Statements, IF,THEN p alt+26 q
https://youtu.be/7LxZ2yX3hPM

Geometry 2.2b, More examples of Conditional statements, Converse, Inverse, Contrapositive
https://youtu.be/QCivMZ_uvIQ

High School Geometry Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVBM1nPhwW1lTuxi32Q0IZ3

FOLLOW ME:
TWITTER https://twitter.com/JoannsSchool
FACEBOOK Message me! https://www.facebook.com/JoAnnsSchool/
MINDS Minds.com/joannsschool

SUPPORT MY WORK:
PATREON https://www.patreon.com/JoannsSchool
PAYPAL https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=KKAMABTBVDFNY
YOUTUBE https://www.youtube.com/channel/UCAZKtYcE5Jgd6hVL-RHv6Vw

Get a JoAnn's School t-shirt, mug, tote, hoodie,
or inspirational sticker to let everyone know you're a fan!
Teespring.com/joann-s-school-t-shirts