A circular coffee table has a diameter of 5 ft. What will it cost to have the
top refinished if the company charges $3 per square foot for the refinishing?
$15.00?
Nope.
You need to find the area of the circle.
A = pi * r^2
A = 3.14 * 2.5^2
A = ?
Multiply your answer by #3.
What do you get?
$23.55?
or would i take the 2.5^2 and multiply it getting 5 then multiply that by 3.14 which is 15.7 multiplied by 3 equals 47.10
A = pi * r^2
A = 3.14 * 2.5^2
A = ?
2.5 squared = 6.25
A = 3.14 * 6.25
A = 19.625 square feet
$3 * 19.625 = $58.875
Since the company probably rounds up the square feet, your cost would probably be $60.00.
To calculate the cost of refinishing the circular coffee table, we need to find the area of the table top and then multiply it by the cost per square foot.
The formula to calculate the area of a circle is:
Area = π * radius^2
Given that the diameter of the table is 5 ft, we can calculate the radius by dividing the diameter by 2:
Radius = 5 ft / 2 = 2.5 ft
Now we can find the area using the formula:
Area = π * (2.5 ft)^2
Area = π * 6.25 ft^2
The value of π is approximately 3.14159. So we can approximate the area as:
Area ≈ 3.14159 * 6.25 ft^2 ≈ 19.63 ft^2
Finally, we can calculate the cost of refinishing by multiplying the area by the cost per square foot:
Cost = Area * Cost per square foot
Cost = 19.63 ft^2 * $3/ft^2
Cost ≈ $58.89
Therefore, it would cost approximately $58.89 to have the top of the circular coffee table refinished.