SOLUTION: Crop circles. The expression πr2 gives the area of a circle with radius r. How many square meters of wheat were destroyed when an alien ship made a crop circle of diameter 25

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> SOLUTION: Crop circles. The expression πr2 gives the area of a circle with radius r. How many square meters of wheat were destroyed when an alien ship made a crop circle of diameter 25       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 350224: Crop circles. The expression πr2 gives the area of a circle with radius r. How many square meters of wheat were destroyed when an alien ship made a crop circle of diameter 25 meters in the wheat field at the Southwind Ranch? Round to the nearest tenth. Find π on your calculator.
Found 2 solutions by rfer, checkley77:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
3.14*12.5^2=490.6

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
A=PIR^2
A=3.14(25/2)^2
A=3.14*12.5^2
A=3.14^156.25
A=490.6 METERS^2 IS THE AREA.