Tags » If And Only If

60 degrees special property

The triangle ABC has circumcentre O, incentre I and orthocentre H.
A, O, I, H and C are concyclic if and only if ∠ABC = 60°. 338 more words

Geometry

More cyclic quadrilaterals

Just to pass the time, a very simple result (again found by playing on Geogebra):

A triangle ABC is acute-angled. The point P is located in the interior of ABC. 286 more words

Geometry

Propositional Logic: Building Propositions

Previously, we focused on basic propositions and how they play a part in arguments. But in addition to the rather straightforward types of propositions we saw, we can also use… 754 more words

Critical Thinking

Three circles and one egg

Two circles, X and Y, intersect at two points A and B. One line is drawn through X, cutting it at two points, P and Q; another line, not parallel to the first, is drawn through Y, cutting it at two points, R and S. 350 more words

Geometry

"Nervosa" in If and Only If, Issue Two!

As I mentioned a couple posts ago, I had a short poem published in the new issue of If and Only If: A Journal of Body Image and Eating Disorders… 15 more words

Poetry

Overdue Update: Bennington Residency, a Publication, and Taylor Swift

This post is coming a lot later than I originally planned, and as a result, I have a lot of things to share all at once! 214 more words

Poetry