1.81659021 to eight decimal places
It is: 330 feet
18 and 19
It is: 9900*11 = 108900 which is a perfect square and its square root is 330
2(t2) = 330: t2 = 165: t = 12.85 (2t)2 = 330: 2t = 18.16: t = 9.08
The inexact value of tan 330 is -0.577350, to six significant places. The exact value cannot be represented as a single number because it is a non terminating decimal. To represent it exactly, consider that tan x is sin x over cos x, and that sin 330 is -0.5 and cos 330 is square root of 0.75. As a result, the exact value of tan 330 is -0.5 divided by square root of 0.75.
There are 43,560 square feet in an acre. That gives you 108,900 square feet and the square root of that gives you 330 feet per side
330 square feet is 30.66 square meters.
2.5 acres is 108,900 square feet. The square root of 108,900 is 330, so one way to have 2.5 acres would be a square that is 330 feet on each side. Of course, acreage can be of any shape. No matter the shape, if the area within is 108,900 square feet, then it's 2.5 acres.
The square root of the square root of 2
There are infinitely many of them. They include square root of (4.41) square root of (4.42) square root of (4.43) square root of (4.44) square root of (4.45) square root of (5.3) square root of (5.762) square root of (6) square root of (6.1) square root of (6.2)
It's not a square if it has no root. If a number is a square then, by definition, it MUST have a square root. If it did not it would not be a square.
It will take nine 330 by 330 mm tiles to cover one square meter. The room is 144 square meters in area. 9X144=1296 tiles. With a 5mm grout.