Respuesta :

choccocakee
Use Pythagorean theorem (a squared is equal to c squared minus b squared)

Where a is the unknown leg, c is the hypotenuse and b is the known leg

a^2 = 13^2-5^2 which is 144

Then square root one hundred and fourty four to get rid of the power on a

Square root of one hundred and fourty four is twelve

Answer:

a^2 = 13^2-5^2 which is 144

then square root it and its 12

Step-by-step explanation: