Question

Ex 3 c si d!!! Va rog, e urgenttt.....!!!!!!!!!!

Answer 1

c)[tex]BD= \sqrt{(X {B-XD)^{2} \left +(YB-YD)^{2} [/tex]
$BD= \sqrt{(-5-3) ^{2}+(1-1)^{2}$
[tex]BD= \sqrt{64} [/tex]
[tex]BD=8 [/tex]

$AC= \sqrt{(XA-XC)^{2}+(YA-YC)^{2}$
$AC= \sqrt{(-1+2)^{2} +(4+1)^{2}$
[tex]AC= \sqrt{1 ^{2}+5^{2} [/tex]
$AC= \sqrt{26}$

d)Aria=d₁d₂/2=8√26/2=4√26