Question

Aflati aria dreptunghiului ABCD,stiind:
A(-5;1),B(3;1),C(3;-2).va rog

Answer 1

Stiind ca A = L * l, iar AB si BC sunt cele 2 laturi, calculam lungimile lor:

[tex]AB= \sqrt{(x_{A}-x_{B})^{2}+(y_{A}-y_{B})^{2}}= \sqrt{64+0}=8\\ BC =\sqrt{(x_{C}-x_{B})^{2}+(y_{C}-y_{B})^{2}}= \sqrt{0+9}=3\\ [/tex]

A = 8 * 3 = 24