Respuesta :
Answer:
The length of straw is 21 inches.
Step-by-step explanation:
Given :
Lengths of straw = [tex]4x^2-3[/tex] , [tex]4x^2-2[/tex], [tex]4x^2-1[/tex] inches.
Perimeter of the triangle is [tex]12x^2-6[/tex] inches.
Perimeter of triangle is sum of three sides .
Thus, when we open the triangle we obtain the length of straw thus perimeter is the length of the straw.
Given x = 1.5 inches
Put in perimeter, we get,
Length of straw = Perimeter of triangle= [tex]12x^2-6[/tex] at x = 1.5 inches
[tex]\Rightarrow 12(1.5)^2-6=12\times2.25-6=27-6=21[/tex]
Thus, the length of straw is 21 inches.
