Question

pls help me with this question with steps pls pls pls ​

Answer 1

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Answer 2

Answer:

area = 9√3

Step-by-step explanation:

all sides of an equilateral triangle is equal

let x be the length of each side

perimeter = 18 =3x

x=6

semi-perimeter = 9cm

area of equilateral triangle = $\sqrt{s(s-x)^3}$

s= semi-perimeter = 9cm

area = √(9(9-6)³) = √(9(3)³) = √9(9*3) =9√3