Need help with this.
A concrete path of width 1m and thickness 10cm is to be placed around you pool. Find the number of cubic meters of ready mixed concrete required to lay the path.
Additional Info: pool area is 25.75 without concrete around it.
I have completely forgotten how to calculate this.
Thank You.
if the pool is circular, then
pi r^2 = 25.75, so its radius r = 2.86 m.
Adding a meter all around means its new area is pi * 4.86^2 = 74.20 m^2
So, the difference is 48.45 m^2
The volume of concrete is thus 4.845 m^3
If the pool is not round, adjust the figures to allow for its dimensions.
To calculate the number of cubic meters of ready mixed concrete required to lay the path around the pool, you will need to follow these steps:
Step 1: Calculate the perimeter of the pool.
The formula for calculating the perimeter of a rectangular pool is P = 2l + 2w, where l is the length and w is the width. Since the pool's area has been given as 25.75 square meters, and the width is 1 meter, we can substitute the given values and solve for the length:
25.75 = l * 1
l = 25.75
Therefore, the length of the pool is also 25.75 meters.
Now, the perimeter can be calculated as follows:
P = 2l + 2w
P = 2(25.75) + 2(1)
P = 51.5 + 2
P = 53.5 meters
Step 2: Calculate the volume of the concrete.
The volume is calculated by multiplying the perimeter of the pool by the width (which is also the thickness of the concrete path). Remember to convert the units to meters to maintain consistency.
Volume = Perimeter * Thickness
Volume = 53.5 meters * 0.10 meters
Volume = 5.35 cubic meters
Therefore, the number of cubic meters of ready mixed concrete required to lay the path around the pool is 5.35 cubic meters.