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Why is it better for manhole covers to be round rather than square?
The reason that manhole covers are round, and not square, is because a square cover could, when placed at the right angle, fall through the square hole in the ground. A circle, however, is the same diameter no matter where you measure it, and it cannot fir through a hole the same size and shape, no matter how hard anyone tried.
What are the perfect squares more than 250?
There are infinitely many. Calculate the square root of 250, and round it up. The square of this number will be the first one. The square of any larger integer will also be a perfect square larger than 250.
Is a pizza with 15 inches on each side bigger than a pizza that is 16 inches diameter round?
square pizza = 15 * 15 = 225 square inches round pizza = 3.1416 * 8 * 8 = 201.06 square inches So square pizza is bigger area.
When is it better to round to the tens place rather than the hundreds or thousands place?
When your number is less than fifty.
How many more vertices does a square pyramid have than a triangle pyramid?
1 A square pyramid has 1 at the top and 4 round the base, a total of 5. A triangular pyramid has 1 at the top and 3 round the base, a total of 4. The square pyramid has 5 - 4 = 1 extra vertex (round its base).
