dimensions of a concrete pile are 14 inchesx14 inches x 15 feet. (1 meter=3.28 feet) the pile has 4 faces and 2 ends. 1>what is the surface area in square feet, of a single pile? exclude the ends of the pile. 2>What is the total surface area in square meters including the ends of the pile? 3>How many cubic meters of concrete were used to make the pile?

Thanks for the help:) Just to be sure I did the math right--

1> 14x180=2520
2520x4= 10080
10080 square inches = 70 square feet

2>14x14=196
196 x 2= 392
392+ 10080= 10472
10472square inches =72.72 Square feet= 6.76 square meters

3>14x14x180= 35280 cubic inches= 0.578135m3

I had this question in class and y teacher did this, well part a, with me. The answers are not identical. What we have is:

14in * 1ft/12in=1.17ft*15ft=17.6ft^2...now I know I wont get an answer in time for my class but how on earth are these answers so different

15 ft = 15 ft x 12in/ft = 180 inches.

A face is 14" x 180"; therefore, 14 x 180 = ?? square inches per side and that x 4 sides = xx square inches total.
There are 144 square inches in 1 square foot. Convert to square feet.

The ends have a surface area of 14" x 14" = ?? square inches. That times 2 will give the area of both ends and that added to the area in #1 will give the total. Convert to square feet and to square meters.

Volume = length x width x height in cubic inches. Convert to cubic meters.

Post your work if you get stuck and explain in detail what you don't understand.

It looks ok to me.

Did you use google to make the conversions? If so, you need to know how to do them if you are asked to show your work and you don't have google in your hip pocket.

If your instructor is picky about significant figures, note that 14, 14, and 15 have only two places; therefore, the answers are allowed only two. So the 72.7, for example, would be rounded to 73. Of course, the 14 may be 14.0 and you just omitted the final zero.

My instructor also solved this and answer to the first question was 18ft^2. The pile has four faces and two ends.The question says of a single face excluding the ends. so I think the right answer is 18/ 17.6ft^2

To find the answers to these questions, we need to calculate the surface area and volume of the concrete pile using the given dimensions.

1. Surface area excluding the ends:
The surface area of a single face of the pile can be calculated by multiplying the length and width of the face. Since there are four faces excluding the ends, we can calculate the total surface area by multiplying this value by 4.

Length of the pile = 15 feet = 15 * 12 inches = 180 inches
Width of the pile = 14 inches
Surface area of a single face = length * width = 180 inches * 14 inches
Total surface area of the pile excluding the ends = 4 * (180 inches * 14 inches)

To convert the surface area from square inches to square feet, we divide the result by 144 (1 square foot = 144 square inches).

2. Total surface area including the ends:
In addition to the four faces, we also need to consider the surface area of the two ends. Each end has the same dimensions as one face, so we can simply multiply the previous surface area by 2 to account for both ends.

Total surface area of the pile including the ends = Total surface area excluding the ends + 2 * (Surface area of a single face)

To convert the surface area from square inches to square meters, we need to convert first from square inches to square feet using the conversion factor: 1 square meter = 10.764 square feet.

3. Volume of the pile:
The volume of the pile can be calculated by multiplying the length, width, and height of the pile.

Height of the pile = 15 feet

To convert the volume from cubic feet to cubic meters, we need to convert first from cubic feet to cubic inches (1 cubic foot = 12^3 cubic inches), then from cubic inches to cubic meters using the conversion factor: 1 cubic meter = (1/3.28)^3 cubic feet.

After calculating the above parameters, we can find the respective answers.