Answer:
199.96 feet
Step-by-step 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 [tex]A = \pi r^{2}[/tex]
⇒ [tex]31416 = \frac{22}{7} \times r^{2}[/tex]
⇒ [tex]r^{2} = \frac{31416 \times 7}{22} = 9996[/tex]
⇒ [tex]r= \sqrt{9996} = 99.97[/tex] feet.
Therefore, diameter = 2r = 199.96 feet. (Answer)
