Yes. Heron's Formula works on all triangles.
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We can prove Heron's formula by the equation method. First of all we should know the height of the triangle and the three sides. The working is given below: s=(a+b+c)/2 We must then find: s-a s-b s-c By data, √[s(s-a)(s-b)(s-c)] =1/2bh If the answers are equal, then Heron's Formula has been proved.
Yes, all plane triangle.
For all triangles: area = 1/2 * base * height
No. But all isosceles triangles and equilateral triangles are.
Yes. But not all isosceles triangles are equilateral.