Seudónimo Seudónimo
  • 01-03-2018
  • Mathematics
contestada

If the area of an equilateral triangle is 9√3 sq ft, how long is a side?
6 ft.
9 ft.
18 ft.

Respuesta :

Banabanana
Banabanana Banabanana
  • 01-03-2018
The area of an equilateral triangle can be found using the formula:
[tex]Area= \frac{ \sqrt{3} }{4}s^2 \ \ \ \ \ \text{[s= length of a side] } \\ \\ \\ \frac{ \sqrt{3} }{4}s^2=9 \sqrt{3} \\ \\ s^2=9 \sqrt{3}: \frac{ \sqrt{3} }{4}= 9 \sqrt{3} \cdot \frac{ 4 }{ \sqrt{3} }=36 \\ \\ s= \sqrt{36}=6 \ \text{ft } [/tex]

The answer is 
6 ft. 
Answer Link
Аноним Аноним
  • 17-06-2021

Answer:

6ft.

Step-by-step explanation:

Answer Link

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