Posted by Deanna on Monday, March 8, 2010 at 6:57pm.
i don't get this circle a has a diameternof 10 feet. rounded to the tenths place, the are of circle a is what?

math  Ms. Sue, Monday, March 8, 2010 at 7:01pm
Here's the formula for the area of a circle:
A = pi * radius squared
A = 3.14 * 5^2
A = 3.14 * 25
A = 78.5 square feet