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Geoclid Migrates to Ghost

Geoclid Migrates to Ghost

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Albers Uzila
What’s Next on Geoclid

What’s Next on Geoclid

Looking back to move forward
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Albers Uzila
The Origin of the Infamous Law of Cosines

The Origin of the Infamous Law of Cosines

When algebra meets geometry, again
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Albers Uzila
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Theorems 📖
How to Prove the Law of Sines: a Complete Guide

How to Prove the Law of Sines: a Complete Guide

When algebra meets geometry
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Albers Uzila
What’s so Special about Circumcircles?

What’s so Special about Circumcircles?

Alright, hear me out
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Albers Uzila
From Kite to Parallelogram

From Kite to Parallelogram

They have unique diagonals. Here’s why.
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Introducing: The Theorem Grid

Introducing: The Theorem Grid

Theorems on Geoclid So Far
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Albers Uzila
Another Way to Calculate the Area of a Triangle

Another Way to Calculate the Area of a Triangle

Besides the usual formula you learn from school
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Albers Uzila
In Search of Segment Length Inside a Triangle

In Search of Segment Length Inside a Triangle

Stewart’s Theorem: Pythagorean going forward
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Albers Uzila
Pythagorean Theorem

Pythagorean Theorem

and a neat way to prove it
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Albers Uzila
But Why is the Total Internal Angle of a Triangle 180°?

But Why is the Total Internal Angle of a Triangle 180°?

And why is it 540° for a pentagon?
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Albers Uzila
Line, Ray, and Segment

Line, Ray, and Segment

What’s the difference?
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Albers Uzila
5 Special Lines in a Triangle

5 Special Lines in a Triangle

Altitude, median, and the three bisectors
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Albers Uzila
Similarity

Similarity

A piece of fundamental knowledge in solving geometry problems
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Albers Uzila
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