The surface area of a 21 foot in ground pool is 346.36 square feet.
315
To find the surface are of the pool we need to make use of two formulae: 1) Circumference = pi x diameter and 2) area = pi x radius2. First: 21 = pi x D D = 6.68450761 So the radius = 6.68450761/2 = 3.342253805 Now: Area = pi x 3.3422538052 = 35.09366495 = 35 square feet (nearest whole number)
21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.
The square root of 21 is 4.58257569495584.
The surface area of a 21 foot in ground pool is 346.36 square feet.
420
525 square feet (21 x 25)
315
73.5 square feet.
294 square feet. Just multiply length by width - the answer is the square footage.
21 ft * 17 ft = 357 sq feet.
To find the surface are of the pool we need to make use of two formulae: 1) Circumference = pi x diameter and 2) area = pi x radius2. First: 21 = pi x D D = 6.68450761 So the radius = 6.68450761/2 = 3.342253805 Now: Area = pi x 3.3422538052 = 35.09366495 = 35 square feet (nearest whole number)
Ah, what a delightful question! To find the square footage of a room, you simply multiply the length by the width. In this case, a room that is 20 feet long and 13 feet wide would be 260 square feet of space for you to create your own little world of happy little trees and friendly little clouds.
This question cannot be answered without more information. Does 21 foot refer to the length of a side of a square or rectangular pool, the radius or circumference of a circular pool? Is the pool of some other shape? What is its depth?
Diagonal of a square of side s is given by: d = 21/2s We have, d = 13 inches So, using the above formula we get, s = d/21/2 = 13/21/2 inches = 9.193 inches
273 square feet. Multiply length by width - the result is the area in square feet.