Mary is planning a circular rug. If she wants the rug to have a circumference of no more than 24 feet, which of the following represents the possible radius of her rug (to the nearest tenth foot)? Use 2 π r ≤ C.

r ≤ 8.1 ft

r ≤ 12 ft

r ≤ 3.1 ft

r ≤ 3.8 ft

Question

Mary is planning a circular rug. If she wants the rug to have a circumference of no more than 24 feet, which of the following represents the possible radius of her rug (to the nearest tenth foot)? Use 2 π r ≤ C.
 
		
r ≤ 8.1 ft
 		
r ≤ 12 ft
 		
r ≤ 3.1 ft
 		
r ≤ 3.8 ft

kropot72 · Answer

Rearrange the given equation to the following:
$$r \le\frac{C}{2\pi}=\frac{24}{2\pi}$$