Question

Stind ca punctele A(-2:4) si B(5:2) , calculati lungimea segmentului AB

Answer 1

A(-2:4) si B(5:2)

AB= $\sqrt{(Xb-Xa)^{2} +(Yb-Ya)^{2}}$

AB=$\sqrt{[5-(-2)]^{2}+(2-4)^{2} }$

AB=$\sqrt{(5+2)^{2}+(-2)^{2} }$

AB=$\sqrt{7^{2} +4}$

AB=$\sqrt{49+4}$

AB=$\sqrt{53}$

AB=7,28