YouTube on MSNOpinion

Learning how to find the measure of a minor arc for a circle

Learn how to solve problems with arcs of a circle. An arc is a curve made by two points on the circumference of a circle. The ...
YouTube on MSNOpinion

Learn how to determine the measure of a semi circle

Learn how to solve problems with arcs of a circle. An arc is a curve made by two points on the circumference of a circle. The ...
BBC

What is pi? - Circumference of a circle

The circumference of a circle is the distance around the shape. The ability to round a number to a number of decimal places or to a number of significant figures means that answers can be written to ...
BBC

Higher – Calculating angles using circles

Circles have different angle properties, described by a number of theorems. This is one of two guides on circle theorems, with this guide covering the following: the angle subtended by an arc at the ...