Perimeter of a Right Triangle
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Note. Courtesy of the author: José María Pareja Marcano. Chemist. Seville, Spain.
Exercise: How to Find the Perimeter of a Right Triangle
We can find the perimeter of a right triangle whose sides are a=3 cm, b=4 cm and c=5 cm by adding all the three sides:
The perimeter of the triangle is 12 cm.
How do you Find the Perimeter of a Right Triangle using the Pythagorean Theorem?
- If we only know the two legs of the right triangle:
- If we only know a leg and the hypotenuse of the right triangle we can also find the other leg and the perimeter using the formula that states the Pythagorean theorem:
How to Find the Perimeter of a Right Triangle using the Leg Rule
According to the equation derived from the Leg Rule we can calculate the lengths of the two legs in a right triangle if the hypotenuse and the two projections (m and n) of the legs (a and b) on the hypotenuse are given.
So, we get the following formulas for each leg:
If perimeter is equal to a + b + c.
AUTHOR: Bernat Requena Serra