Triangle area = perimeter.

[Kieran]

When a triangle has side lengths 5, 5 and 8 units , the co-efficient of it's perimeter = it's area, 18 units. Find another triangle where this property holds ? I tried using heron's formula and came up with an equation in the fourth power. A ^ 2 = A /2 ( A /2 - c) ( A /2 - x) ( A /2 - y) , c,x , y are lengths of the sides. A ^2 = P ^ 2 . A = area, p = perimeter. Thank you.

 

[stapel]

When a triangle has side lengths 5, 5 and 8 units , the co-efficient of it's perimeter = it's area, 18 units. Find another triangle where this property holds ? I tried using heron's formula and came up with an equation in the fourth power. A ^ 2 = A /2 ( A /2 - c) ( A /2 - x) ( A /2 - y) , c,x , y are lengths of the sides. A ^2 = P ^ 2 . A = area, p = perimeter. Thank you.

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