Question

un teunghi echilateral cu latura de 4 cm are aria ?????
Va rog ajutati-ma

Answer 1

[tex]A_t_r.\ _e_c_h_i_l_a_t_e_r_a_l= \dfrac{l^2 \sqrt{3} }{4} \\ A= \dfrac{4^2 \sqrt{3} }{4} \\ A= \dfrac{16 \sqrt{3} }{4}(16\ si\ 4\ se\ simplifica) \\ A=4 \sqrt{3} \\ Bafta! [/tex]

Answer 2

$\mathcal{A} =\it\dfrac{\ell^2\sqrt3}{4} =\dfrac{4^2\sqrt3}{4} =\dfrac{4\cdot4\sqrt3}{4} ={4}\sqrt3 \ cm^2$