Question

Se o triangulo cujo a vertices sao as pontas A(1,2) B (3,4) e C (4,0). calcule o seu perimetro?

Answer 1

dAB=√(3-1)²+(4-2)²
dAB=√4+4
dAB=√8
dBC=√(4-3)²+4²
dBC=√1+16
dBC=√17
dCA=√(1-4)²+2²
dCA=√9+4
dCA=√13

2p=√8+√17+√13