Geometry
Supplementary Angle Identities
Whenever two angles add up to π.
Wojciech Wieczorek
Geometry
How Aristarchus Found the Size of the Moon
How big are you, my precious Moon?
Geometry
The Central Angle Theorem
In geometry, a central angle subtended by the arc is twice much as any inscribed angle of the same arc.
History
How Eratosthenes Calculated the Circumference of The Earth
How big are you, my Earth?
Number Theory
Convert Numbers Between Numeral Systems Using Logarithms
What one would do to find the representation of a number written in one base to some another would probably be to take a look at the…
Geometry
Pythagoras’ Theorem With Proof
Where the sum of two squares meets the third.