Question

aria unui triunghi dreptunghic de ipotenuza 18cm si o cateta de 10cm

Answer 1

[tex]c_1=10cm\;\;si\;\;ip=18cm\;\;\Rightarrow\;\;c_2=\sqrt{18^2-10^2}=\sqrt{224}=4\sqrt14(cm)\\ A_{\Delta}=\frac{10cm\cdot4\sqrt14cm}{2}=20\sqrt14\;cm^2[/tex]