# How many angles does a circle have?

A circle has infinite possible angles. You can form an angle in a circle by using three points: the center of the circle and any two points along the circle's circumference. Since you can plot infi... Read More »

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## How to Calculate the Arc & Angles of a Circle?

An arc is any segment of a circle. The length of an arc is difficult to measure because of the circle's curvature but can be calculated using the mathematical relationships within the circle. The l... Read More »
http://www.ehow.com/how_8380212_calculate-arc-angles-circle.html

## Does a circle have a line of symmetry?

A line of symmetry divides a figure into halves that mirror each other. A circle has an infinite number of symmetry lines. This is because the distance from any point along the circumference, passi... Read More »

## Why do 3D TV's have such narrow viewing angles?

There are limitations in viewing angles for many 3D TVs. The LG passive 3D TVs seem to offer some of the best/widest viewing angles at present. Best suggestion is to try a few demo models out at a ... Read More »

## How many degrees are in a circle?

A circle has 360 degrees. According to the Math Forum at Drexel University, the reason may lie with the ancient Babylonians. Their number system was based on 60, rather than the 10 of modern math, ... Read More »

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