Question

aria unui patrat cu diagonala de 4 cm..este:?

Answer 1

d = l√2 deci
 latura= 2√2

aria= l²= (2√2)²= 8cm

Answer 2

diagonala = l√2 ⇒ latura= $\frac{diagonala}{ \sqrt{2} } = \frac{4}{ \sqrt{2} } = \frac{4 \sqrt{2} }{2} =2 \sqrt{2}$ (latura)

aria= l²
= (2√2)²
= 8