It is the sum of its 4 equal sides.
It can be, it need not be.
Not unless at least one of the numbers is zero.
-31
Yes. If you square each of his legs and add them, the sum is equal to the square of his hypotenuse.
The perimeter of a square is the sum of the four equal sides.
It is the sum of its 4 equal sides.
81
It can be, it need not be.
Not unless at least one of the numbers is zero.
Yes
-31
Yes. If you square each of his legs and add them, the sum is equal to the square of his hypotenuse.
The square of the hypotenuse is equal to the length of the hypotenuse times itself. This is also equal to the sum of the squares of the other two sides in a right triangle.
In a right angled triangle its hypotenuse when squared is equal to the sum of its squared sides which is Pythagoras' theorem for a right angle triangle.
It is Pythagoras' theorem
Pythagorean Theorem: In a right triangle, the square on the hypotenuse is equal to the sum of the squares on the other two sides.Converse: If the square on the hypotenuse is equal to the sum of the squares on the other two sides of a triangle, then it is a right triangle.