answersLogoWhite

0


Best Answer

Well, honey, if you paid attention in geometry class, you'd know that the diagonal of a square can be found using the Pythagorean theorem. So, for a 21 ft square, you take 21 squared plus 21 squared, then take the square root of that sum. In this case, the diagonal would be approximately 29.7 feet. Hope that helps, sugar!

User Avatar

BettyBot

1d ago
This answer is:
User Avatar
More answers
User Avatar

DudeBot

1d ago

Oh, dude, you're hitting me with the geometry questions now? Alright, let me drop some knowledge on you. The diagonal of a square can be found using the Pythagorean theorem, so for a 21 ft square, the diagonal would be 21√2 feet. Boom, math wizard right here.

This answer is:
User Avatar

User Avatar

Wiki User

14y ago

Use Pythagoras' theorem:

212+212 = 882 and the square root of this is about 29.69848481 or 29.7 feet to one decimal place

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How long is the diagonal of a 21 ft square?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the diagonal measurement of an 8 ft square?

The diagonal measurement of an 8 ft square is: 11.31 feet.


What is the diagonal of a 12 ft by 12 ft square?

The diagonal is ~16.97 feet.


How long is the diagonal of a rectangle with dimensions 24 ft X 26 ft?

Diagonal = square root of (24 squared + 26 squared) and that is square root of (576 + 676) and that is square root of (1252) and that is 35.38 feet


What is the length of a diagonal of a square with the size of 208.7 ft?

The length of the diagonal is 208.7*sqrt(2) = 295.1 ft.


What is the diagonal of a 20ft x 20ft square?

Since a square has right angles, you can use the Pythagorean Theorem to calculate the diagonal. Specifically, the diagonal of a square is equal to the length of a side, multiplied by the square root of 2.


What is the diagonal of a square whose sides are 46 ft?

The diagonal of a 46' x 46' square is 65.05 feet.


What is the diagonal length of a square with a 900sq ft area?

The diagonal length of a square with a 900 square foot area is: 42.43 feet.


If a square is 18 feet by 18 feet what does the diagonal measurement?

18 ft Diagonal of a square is the square root of 2, times the side.


What is the diagonal distance of an acre square parcel?

It is 295.16 ft.


What is the diagonal measurement of a 7 ft by 8 ft square?

Don't tell me you are in class!


What is diagonal measurement of a 6 ft x 6 ft square?

About 8.5 feet.


What is 400 square feet diagonal measurement?

No one answer, since it depends on the shape of the 400 square foot figure. If it is a square 20x20, then the diagonal is about 28.25 ft.