Question

The circumference of a pool is 47 feet. Which formula can you use if you know that C =2 pie r

Answer 1

Answer:

We use formula, circumference= $2\pi r$ to get r= 7.48

Step-by-step explanation:

Here is the complete question: The circumference of a pool is 47 feet. Which formula can you use to find Radius (r), if you know that C =2πr.

Given: Circumference= 47 feet.

We will use formula of circumference to find radius (r) as given.

Circumference = $2\pi r$

⇒ $47\ feet= 2\times 3.14\times r$ (∵ we know π=3.14)

Cross multiplying both side to get r.

⇒ r= $\frac{37}{2\times 3.14} = 7.48$

∴ radius (r)= 7.48

∴ We will use circumference formula $2\pi r$ to find Radius (r).