geometry
posted by Kasey .
a right triangle has a hypotenuse of length 25 and a leg length of 15. what is the length of the other leg? if necessary, round you answer to two decimal places

Let the leg lengths be a and b and the hypotentuse be c. a = 15 is the leg length that you know.
Use the Pythagorean righttriangle equation
b^2 = c^2  a^2 = 625  225 = 400
Solve for b.
Rounding off will not be necesary in this case.