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Equilateral triangle - Wikipedia
An equilateral triangle is easily constructed using a straightedge and compass, because 3 is a Fermat prime.Draw a straight line, and place the point of the compass on one end of the line, and swing an arc from that point to the other point of the line segment.

Equilateral Triangle -- from Wolfram MathWorld
Equilateral Triangle. An equilateral triangle is a triangle with all three sides of equal length , corresponding to what could also be known as a "regular" triangle. An equilateral triangle is therefore a special case of an isosceles triangle having not just two, but all three sides equal. An equilateral triangle also has three equal angles.

Equilateral Triangle Calculator - Omni
The equilateral triangle calculator will help you with calculations of the regular triangle parameters. Whether you are looking for the equilateral triangle area, its height, perimeter, circumradius or inradius, this great tool is a safe bet.

Area of equilateral triangle (video) | Khan Academy
Finding the formula for the area of an equilateral triangle with side s. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains * and * are unblocked.

3 Ways to Draw an Equilateral Triangle - wikiHow
To draw an equilateral triangle, start by laying a ruler on a piece of paper and drawing a straight line. Next, insert a compass at an end of the line you've just drawn and put a pencil at the other. Trace a quarter circle with the pencil end of the compass moving upwards, then switch the ends of the compass around.

Definition of Equilateral Triangle - Math is Fun
Math explained in easy language, plus puzzles, games, quizzes, videos and worksheets. For K-12 kids, teachers and parents.

Equilateral Triangle Calculator - Shows All Steps
Enter side, perimeter, area or altitude of equilateral triangle then choose a missing value and the calculator will show you a step by step explanation how to find that value.

Construct Equilateral Triangle - MathBitsNotebook (Geo ...
Draw segments from A to B, B to C and C to A, to form the equilateral triangle. Proof of Construction: This construction uses the fact that an angle inscribed in a semicircle is a right angle, and that in a 30º-60º-90º triangle, the length of the short leg is half of the length of the hypotenuse.

What is an Equilateral Triangle? - Definition, Properties ...
You'll notice that along with this triangle's sides, its three angles are also all equal. Since the sum of a triangle's angles is always 180 degrees, each angle in an equilateral triangle must ...

Equilateral triangle - Simple English Wikipedia, the free ...
In geometry, an equilateral triangle is a triangle where all three sides are the same length and all three angles are also the same and are each 60°.If an altitude is drawn, it bisects the side to which it is drawn, in turn leaving two separate 30-60-90 triangles




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