Question

aria unui triunghi echilateral cu inaltimea de 6√3 dm este egala cu?

Answer 1

[tex]h= \frac{l \sqrt{3} }{2} =6 \sqrt{3} =\ \textgreater \ l=6* \sqrt{3} * \sqrt{3} =12dm \\ A= \frac{l ^{2} \sqrt{3} }{4} =\frac{144 \sqrt{3} } {4} =36 \sqrt{3} dm ^{2} [/tex]