Polygons

Polygons

Polygons are planes figures formed by a closed series of rectilinear segments. Ex– Triangle, Rectangle etc....

Triangles

A triangle is a polygon having three sides. Area: 1. Area = 1/2 x base x height 2. Area = √s(s-a)(s-b)(s-c) where s = a+b+c/2 3. Area = rs (where r is in-radius) 4. Area = 1/2 x product of two sides x sine of angle 5. Area = abc/4R where R = circumradius...

Tangents:

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