So it's about a special triangles and i am trying to find the permeperimeter

Question

The hypatuse is 15cm and the one leg is 12cm I'm tryingto find the other leg

Answer 1

If you have a hypotenuse, then you must have a right triangle.  You can use the Pythagorean theorem.

 

a² + b² = c²

 

where a and b are the two legs and c is the hypotenuse.   To find the missing leg, solve for either a or b.

 

a = √(c² - b²)

 

where:

c = 15

b = 12

 

Then the perimeter of the triangle is

 

Perimeter = a + b + c