Question

an isosceles triangle has perimeter 30 cm and each of the equals dies is 12 cm find the area of the triangle

Answer 1

Let Triangle be ABC

Let Equal sides be AB=BC = 12 cm

SO, AB+BC+AC = 30cm
     so, 12+12 +AC = 30 cm
                    so, AC = 6 cm

So, Area of triangle by Heron's formula = 34.8 cm^2

Answer 2

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