Incentro: differenze tra le versioni

perPer un triangolo di vertici A(x<submath>aA=(x_a,y_a)</submath>;y, <submath>aB=(x_b,y_b)</submath>), B(x<submath>bC=(x_c,y_c)</submath>;y e lati <submath>ba=\overline{BC}</submath>), C(x<submath>cb=\overline{AC}</submath>;y, <submath>c=\overline{AB}</submath>), lati a=BC, b=CA, c=AB e perimetro 2p=a+b+c abbiamo:

*[[coordinate cartesiane]]: <math>\left( \frac{ax_a + bx_b + cx_c}{2pa+b+c};\frac{ay_a + by_b + cy_c}{2pa+b+c} \right)</math>