2007-03-21 12:29:20 · 8 answers · asked by Allen J M 1 in Home & Garden ➔ Decorating & Remodeling
Listen to Bill P, He's correct. But it doesn't just have to be inches. Can be anything feet, yards, miles. Also you can double the numbers for large areas, instead of 3,4,5 squared, you can do 6,8,10,12,16,20 and so on.
That's how builders start footings in a field per say. Stakes, string lines and a tape measure.
2007-03-21 12:46:36 · answer #1 · answered by daffyduct2006 6 · 0⤊ 0⤋
It is simple: 3,4,5
From the junction of the two lines, measure up 3 inches and place a dot. Then measure across 4 inches and make another dot. Then measure from dot to dot and if it does not = 5 inches, then it is not square. Pure geometry.
A square + B square = c square
3 squared = 9; 4 squared = 16; 9+16 = 25 and the square root of 25 is 5
2007-03-21 12:37:12 · answer #2 · answered by Polyhistor 7 · 1⤊ 0⤋
By definition a right angle is square or 90 degrees or 1.5707963 radian. If you are unsure if an object has a right angle, since some things can be close, use a combination square or a protractor.
2007-03-21 12:36:25 · answer #3 · answered by nathanael_beal 4 · 0⤊ 0⤋
A right angle (90 degrees) is square by definition.
2007-03-21 12:36:44 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Use Pythagorean theorem. measure 3 feet from the corner on one leg and make a mark, measure 4 feet from the corner on the other leg and make a mark. Measure between the two marks. If it is 5 feet, your angle is square.
Could also use inches instead of feet incase what you are measuring is not that big.
2007-03-21 16:19:08 · answer #5 · answered by Ben D 3 · 0⤊ 0⤋
put a square on it. Use the adjusable kind it will tell you the degrees of the angle.
2007-03-21 12:33:14 · answer #6 · answered by renpen 7 · 0⤊ 0⤋
a right angle is always square.
2007-03-21 12:31:30 · answer #7 · answered by Anon omus 5 · 0⤊ 0⤋
I agree, 3, 4, 5 is the way to go.
2007-03-21 13:54:23 · answer #8 · answered by billy brite 6 · 0⤊ 0⤋