Find the length of the side of an equilateral traingle having an area of 9√3 cm sq
Answers
Answered by
1
Answer:
I don't know
Step-by-step explanation:
Answered by
0
Answer:
6cm
Step-by-step explanation:
let the side be x cm.
height of equilateral ∆=√3/2× x
area of ∆=1/2×base×height
=1/2×x×√3/2×x
9√3=√3/4×x^2
9√3×4/√3=x^2
36=x^2
x=±6
length cannot be negative
x=6cm
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