Respuesta :

devishri1977

Answer:

9.53 cm

Step-by-step explanation:

Height of equilateral triangle.

     a = 11 cm

 [tex]\boxed{\text{height of equilateral triangle = $\dfrac{\sqrt{3}}{2}*a$}}[/tex]

                                                [tex]\sf =\dfrac{\sqrt{3}*11}{2}\\\\ = \dfrac{1.732*11}{2}\\\\ = 9.53 \ cm[/tex]