3/5 and 6/8 are not proportional as even though 3 goes into 6 evenly, 5 does not go into 8 evenly so that makes it disproportional.
Answer:
![36.93\ ft](https://tex.z-dn.net/?f=36.93%5C%20ft)
Step-by-step explanation:
step 1
Find the circumference of the circle
The circumference is equal to
![C=\pi D](https://tex.z-dn.net/?f=C%3D%5Cpi%20D)
we have
![D=25.2\ ft](https://tex.z-dn.net/?f=D%3D25.2%5C%20ft)
substitute
![C=25.2\pi\ ft](https://tex.z-dn.net/?f=C%3D25.2%5Cpi%5C%20ft)
step 2
we know that
The circumference of a circle subtends a central angle of 360 degrees
so
using proportion
Find out the arc length by a central angle of 168 degrees
![\frac{25.2\pi}{360}=\frac{x}{168}\\\\x=25.2\pi*168/360\\\\x=(25.2*3.14)*168/360\\\\x=36.93\ ft](https://tex.z-dn.net/?f=%5Cfrac%7B25.2%5Cpi%7D%7B360%7D%3D%5Cfrac%7Bx%7D%7B168%7D%5C%5C%5C%5Cx%3D25.2%5Cpi%2A168%2F360%5C%5C%5C%5Cx%3D%2825.2%2A3.14%29%2A168%2F360%5C%5C%5C%5Cx%3D36.93%5C%20ft)
You'd want to buy the 4 by 5 and the 11 by 14 because if you times 4 by 3 and 5 by 3, the answer would be 12 by 15 which is the closet or the most similar pair
1.4375 + 4 = 4379 i hope this helps
2.1445 + 13 = 1458
3.10 + 476 = 486