subtract the two sides that you know from the perimeter to get the unknown side.
ntuple
n-tuple?? or Richard
NTUPLE THIS WAS THE ANSWER GIVEN IN A 2008 NY TIMES CROSSWORD PUZZLE
Divide the length of the diagonal of a square by 1.4142 (which is the square root of 2) to find the length of a side. Similarly, to find the length of the diagonal of a square, multiply the length of a side by 1.4142.
subtract the two sides that you know from the perimeter to get the unknown side.
it can help you find the unknown length on one side of a triangle
It depends on what information you do have. The length and area, the length and diagonal, the length and perimeter, etc. Each set generates a different answer.
It depends on what information about the other sides and angles you do have.
It'll be the largest chord of the circle.
If you know the length of one side - and the area... divide the area by the known side - to get the value of the unknown.
usePythagorean theorem A^2+B^2=C^2
You cannot, to find an unknown, you need at least two knows facts. IE if the length and width give you area, you cannot get the area without BOTH the length and width.
It is unknown.
unknown
You begin by finding the length of the unknown side. The square of the hypotenuse is equal to the sum of the squares of the two legs. Then once you have the lengths of all 3 sides, you adum all up, and you have the perimeter.
If you have the length of two of the sides and one other angle you can use the law of sines.