Question

Un triunghi dreptunghic isoscel are ipotenuza de 4 cm. Aflati lungimea uneia dintre catete

Answer 1

Dupa Teorema lui Pitagora, stim ca $i^2 = c_1 ^2 + c_2^2$ .  In cazul nostru, $i^2 = 2c^2$ ⇒ $4^2=2c^2$ ⇒ $16=2c^2$

$c^2 = 8$ ⇒ $\boxed {c=2 \sqrt{2} }$