SOLUTION: Please help me answer this question The Louisiana Superdome covers an area of 363,000 square feet. Find the diameter of this round arena to the nearest foot. Use pi = 3.14

Question 388878: Please help me answer this question

The Louisiana Superdome covers an area of 363,000 square feet. Find the diameter of this round arena
to the nearest foot. Use pi = 3.14.

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the area of a circle formula.

Divide both sides by .

Take the square root of both sides to isolate "r" (note: we're only taking the positive square root since a negative radius doesn't make sense)

Flip the equation.

Plug in .

Replace with (note: Use more digits of to get better accuracy).

Divide (this figure is approximate).

Take the square root of to get (again, this is approximate).

Round to the nearest foot.

Since the radius is , the diameter is feet.

So the diameter of the arena is about 680 feet.
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