formulae of triangle, qudrilateral , hexagon ,pentagon
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Perimeter :: P
Area :: A
Pi = 22/7 ~3.14
Triangle. A - Pi•radius^2 (Pi R^2)
P - 2PiR
Quadrilateral. A - length * breadth (lb)
P - sum of 4 sides [2(l+b)]
Hexagon. P - 6(side). 6s
Pentagon. P - 5(side). 5s
Area :: A
Pi = 22/7 ~3.14
Triangle. A - Pi•radius^2 (Pi R^2)
P - 2PiR
Quadrilateral. A - length * breadth (lb)
P - sum of 4 sides [2(l+b)]
Hexagon. P - 6(side). 6s
Pentagon. P - 5(side). 5s
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