contestada

A piece of art is in the shape of an equilateral triangle with sides of 7 in. Find the area of the piece of art. Round your answer to the nearest tenth.

Respuesta :

the formula that is used is [tex]A= \frac{ \sqrt{3} }{4} a^2[/tex]

a=length of a side. [tex]7^2=49[/tex]


[tex]\frac{ \sqrt{3} }{4}*49=21.2[tex]