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anonymous
 5 years ago
The area of a round flat parachute is 380 square feet. Find the radius of the parachute.
anonymous
 5 years ago
The area of a round flat parachute is 380 square feet. Find the radius of the parachute.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so to find the area of a circle, we use the formula: \[pir\] ryou know this, right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sorry, that was supposed to say pie(r)^2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can you hold up for a sec

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, so this is like an average algebraic problem, except this time we need to solve for r(the radius) so we set up this equation like this: π(r)^2 =380

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0π(r)^2 =380 r^2=380/π r^2= 120.95775674984 (calculator) \[r=\sqrt{120.957756}\] r=10.99 ( approximately)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so the radius of the parachute is approximately 10.99
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