Question

PLEASE HELP ASAP!!

Mark Is using a string attached to a stick to mark off a circular-shaped flowerbed In his garden. If the circumference of
the flowerbed Is 31.4 feet, how long was the string he used? That is, how long is the radius of the circle? (Use 3.14 for 17.)


A. 10 ft
B. 3.2 ft
C. 5 ft
D. 100 ft

Answer 1

C) 5 ft

Explanation:

Equation used: C=2πr

This isn't a hard question once you understand the basics of it. The radius squared by 2 equals the diameter, and other way around. Your going to divide the circumference by the pie (π).

31.4 ÷ 3.14 = 10

Now you'll do 10/2 to equal 5.

Answer 2

C

Explanation:

Hey There so the first step of this problem is to find the formula for circumference

`C=2\pi r`

given some of the values we can form an equation to solve for the radius (r)

`31.4=3.14(2)r\\3.14(2)=6.28\\31.4=6.28r\\(31.4)/(6.28) =5`

so we can conclude that the radius is equal to 5