Question

Gasiti aria unui triunghi dreptunghic isoscel avand ipotenuza de lungime 8 cm.

Answer 1

$Fie: \ a -cateta \ 1, \ b - cateta \ 2, \ c-ipotenuza \\ a=b=x \\ a^2+b^2=c^2=8^2=64 \\ x^2+x^2=64 \\ 2x^2=64 \\ x^2= \frac{64}{2}=32 \\ A= \frac{x^2}{2} = \frac{32}{2} = \boxed{16} \\ A= \frac{c^2}{4} = \frac{8^2}{4} = \frac{64}{4} =\boxed{16}$