Question

d(patrat)=12_/2 cm
_____________________
P(patrat)=?
A(patrat)=?​

Answer 1

d= l√2

12√2= l√2

l= 12√2/√2

l= 12 cm ( latura)

P= 4•l= 4•12= 48 cm

A= l²= 12²= 144 cm²

Answer 2

$d = l \sqrt{2 } \\ 12 \sqrt{2} = l \sqrt{2} \\ l = \frac{12 \sqrt{2} }{ \sqrt{2} } \\ l = 12$

Perimetrul la patrat =4 x l =4x 12 =48 cm

Aria la patrat egal L^2=12x12=144 cm2