Inches? what is the side length of an equilateral triangle with a perimeter of 36 36% inches b 181 inches c121 inches d 122 inches

12 inches

Step-by-step explanation:

Equilateral triangle means all sides are equal so you take 36 and divide it by 3 to get 12 inches per side.

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

the answer is (-4,-4)

hope this ! : d