what is the area of circle with the diameter of 15 feet, rounded to the nearest whole number?

http://www.aaamath.com/ >>> http://www.aaastudy.com/geo.htm >>> Surface area

recall that the area of a circle is given by:

Area = pi*r^2
since in the problem, diameter is given, we first get radius:
diameter = 2*radius
d/2 = r
15/2 = 7.5 ft = r
thus
A = pi*r^2
A = 3.14*7.5^2
A = ?
now solve this using calculator,,

to round off, first you need to know the place of the digit you want to round off,, in the problem it's 'to the nearest whole number (or the ones digit)'. thus we look at the number to the right of ones digit
if the number to the right of ones digit is:
*greater than or equal to 5, you add 1 to ones digit
*less than 5, the ones digit does not change
for example,,
342.67 --->rounding off to nearest whole number gives 343
now apply this to the answer you've got. :)

hope this helps~ :)

A=d^2*pi/4

A=(15^2)*3.14159/*4

A=225*3.14159/4

A=706.85775/4

A=176.7144375 ft^2

A=177 ft^2
rounded to the nearest whole number

To find the area of a circle, you can use the formula A = πr², where A represents the area and r represents the radius of the circle. Since you only know the diameter of the circle, you need to first find the radius.

The radius is half of the diameter. In this case, the diameter is given as 15 feet, so the radius can be calculated by dividing the diameter by 2:

Radius = Diameter / 2 = 15 feet / 2 = 7.5 feet

Now, with the radius, you can calculate the area using the formula:

A = π(7.5 feet)²

Using the value of π (pi) as approximately 3.14159, the calculation is as follows:

A = 3.14159 * (7.5 feet)² = 3.14159 * 56.25 square feet = 176.7146 square feet

Since the question asks for the answer to be rounded to the nearest whole number, the area of the circle is approximately 177 square feet.