Question

your ultra-modern store is one-story round. your square footage is 31,416. What is the diameter of you store ? Area of a circle = ttr^2

Answer 1

200 sq ft

The answer choice is 200

Answer 2

199.96 feet

Explanation:

The base of the ultra-modern store is of a round shape.

The area of the base is 31416 square feet.

We have to find the diameter of the base.

Now, the area of a circle is given by
`A = \pi r^(2)`

⇒
`31416 = (22)/(7) * r^(2)`

⇒
`r^(2) = (31416 * 7)/(22) = 9996`

⇒
`r= √(9996) = 99.97` feet.

Therefore, diameter = 2r = 199.96 feet. (Answer)