12' x 12'.
100 feet equates to 30.48 meters.
a trampline can hold up to 400lbs but it also depends on the size of the trampoline.....I have known a trampoline to hold a tonne, but it had stronger springs added.
30cm = 1 foot
A foot is 12 inches or about 30.5 centimetres
If each person takes up 1 foot of space, then it would take 5280 people.
It would be about mabye $200 or $100
Travertine? $1.49 and up depending on where you get it.
it depends how big the foot is.
That depends on the diameter of the pipe.
There are several models of the Bazoongi trampoline available from Walmart. Some of the prices are, $129 for the 7 foot Hexagonal, 77.49 for the 48 inch Bouncer, 109.99 for the Treehouse, and 75.62 for the 48 inch Bouncer.
100 feet equates to 30.48 meters.
25 pounds
40
1728in sq
About 1 foot around
A 4-ft diameter pipe holds approx 78.3 US gallons.
As you did not specify a depth, I can not provide an answer.