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