SOLUTION: From Textbook: The expression of "pie"r^2 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
Algebra ->
Percentage-and-ratio-word-problems
-> SOLUTION: From Textbook: The expression of "pie"r^2 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
Log On
Question 177325: From Textbook: The expression of "pie"r^2 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 "pie" on your calculator.
You can put this solution on YOUR website! First of all, you won't be able to find 'pie' on your calculator. You need to go to a bakery to find 'pie'. What you may find on your calculator is 'pi' which is the way that the Greeks pronounce , the 16th letter of their alphabet. The area of a circle is . You are given a radius of 25. So multiply 25 times 25 and then multiply by using your calculator. You will get an answer with lots of decimal places, but round off to only 1 decimal place (i.e., the nearest tenth)
