Multiples of 3, 4, 5 because 32 + 42 = 52
for example sides can be 6, 8, 10
or 15, 20, 25
or 9, 12, 15
etc.
of course the largest number of each set will be the hypotenuse.
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Surely you know how to find the third side of a right triangle, when you know the lengths of the other two. Find it, and then add up the lengths of the three sides to get the perimeter.
In a right triangle, the side lengths follow Pythagora's Theorem: a^2 + b^2 = c^2; where a and b represent the lengths of the legs and c represents the hypotenuse.
A scalene triangle has three sides of different lengths. A right triangle can be scalene - for instance the '3-4-5' triangle has a right angle opposite the side which is 5 units long.
Yes, the triangle is right-angled because 322 + 602 = 682. Given all three side lengths, you can use the Pythagorean relationship to determine whether a triangle is or is not right-angled. The right angle would be opposite the hypotenuse, 68.
If two sides of a triangle have lengths of 5cm and 12cm, then the third side can have any length that's more than 7cm and less than 17cm. If the third side is 13cm, then the triangle is a right triangle.