Respuesta :

Step-by-step explanation:

if you mean the area of the triangle then it is S = 1/2*x(x-7)

devishri1977

Answer:

Step-by-step explanation:

b= x cm

h = (x - 7) cm

Area of triangle = [tex]\frac{1}{2}*x*(x-7)\\\\[/tex]

                           [tex]\frac{x*x-x*7}{2}\\\\=\frac{x^{2}-7x}{2}[/tex]   square cm

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