Question

Dado os pontos A ( 5,-2) B (3,0) C (1,-5) D (-8,-1), determine as coordenadas dos pontos médios dos segmentos b)AD c)BD d)AC e)CD

Answer 1

sabe-se que a formula do ponto medio é: PM $(\frac{ X_{1}+ X_{2} }{2} ; \frac{ Y_{1} + Y_{2} }{2})$

 
a) AD= $( \frac{5-8}{2} ; \frac{-2-1}{2} ) = ( \frac{-3}{2} ; \frac{-3}{2} )$

b) BD= $( \frac{3-8}{2} ; \frac{0-1}{2} ) = ( \frac{-5}{2} ; \frac{-1}{2} )$ 

c) AC= $( \frac{5-1}{2} ; \frac{-2-5}{2} ) = ( 2; \frac{-7}{2} )$

d) CD= $( \frac{1-8}{2} ; \frac{-5-1}{2} ) = ( \frac{-7}{2} ; -3 )$

ficou claro?