Other tags that relate to Inscribed in a Circle
Polyhedra. Regular polygons and circles. 2D shapes and their properties. Sine rule & cosine rule. Similarity and congruence. Pythagoras' theorem. Area - triangles, quadrilaterals, compound shapes. Sine, cosine, tangent. Circle properties and circle theorems. Generalising.There are 25 results
Broad Topics > History and Philosophy of Mathematics > History of mathematics
History of Trigonometry - Part 3
Age 11 to 18
The third of three articles on the History of Trigonometry.
The History of Trigonometry- Part 1
Age 11 to 18
The first of three articles on the History of Trigonometry. This takes us from the Egyptians to early work on trigonometry in China.
Circles, Circles Everywhere
Age 7 to 14
This article for pupils gives some examples of how circles have featured in people's lives for centuries.
History of Trigonometry - Part 2
Age 11 to 18
The second of three articles on the History of Trigonometry.
Geometry: A History from Practice to Abstraction
Age 11 to 18
This article gives a brief history of the development of Geometry.
Keeping it Safe and Quiet
Age 14 to 18
Simon Singh describes PKC, its origins, and why the science of code making and breaking is such a secret occupation.
A Brief History of Time Measurement
Age 11 to 18
Noticing the regular movement of the Sun and the stars has led to a desire to measure time. This article for teachers and learners looks at the history of man's need to measure things.
The Development of Algebra - 2
Age 11 to 18
This is the second article in a two part series on the history of Algebra from about 2000 BCE to about 1000 CE.
The Development of Algebra - 1
Age 11 to 18
This is the first of a two part series of articles on the history of Algebra from about 2000 BCE to about 1000 CE.
The Four Colour Theorem
Age 11 to 16
The Four Colour Conjecture was first stated just over 150 years ago, and finally proved conclusively in 1976. It is an outstanding example of how old ideas can be combined with new discoveries. prove. . . .
Babylon Numbers
Age 11 to 18 Challenge Level:
Can you make a hypothesis to explain these ancient numbers?
From A Random World to a Rational Universe
Age 7 to 16
In the time before the mathematical idea of randomness was discovered, people thought that everything that happened was part of the will of supernatural beings. So have things changed?
An Introduction to Magic Squares
Age 7 to 16
Find out about Magic Squares in this article written for students. Why are they magic?!
Ishango Bone
Age 7 to 18 Challenge Level:
Can you decode the mysterious markings on this ancient bone tool?
The Secret World of Codes and Code Breaking
Age 7 to 16
When you think of spies and secret agents, you probably wouldn’t think of mathematics. Some of the most famous code breakers in history have been mathematicians.
Proof: A Brief Historical Survey
Age 14 to 18
If you think that mathematical proof is really clearcut and universal then you should read this article.
The History of Negative Numbers
Age 11 to 18
This article -useful for teachers and learners - gives a short account of the history of negative numbers.
Shaping the Universe I - Planet Earth
Age 11 to 16
This article explores ths history of theories about the shape of our planet. It is the first in a series of articles looking at the significance of geometric shapes in the history of astronomy.
Shaping the Universe II - the Solar System
Age 11 to 16
The second in a series of articles on visualising and modelling shapes in the history of astronomy.
History of Morse
Age 7 to 18
This short article gives an outline of the origins of Morse code and its inventor and how the frequency of letters is reflected in the code they were given.
Ancient Astronomical Terms
Age 11 to 18
Some explanations of basic terms and some phenomena discovered by ancient astronomers
Maths in the Victorian Classroom
Age 7 to 14
What was it like to learn maths at school in the Victorian period? We visited the British Schools Museum in Hitchin to find out.
NRICH is part of the family of activities in the Millennium Mathematics Project.