Answer:
15
Step-by-step explanation:
(Side)^2 = (Hypotenuse)^2 - (Side)^2
(Side)^2 = (25)^2 - (20)^2
(Side)^2 = 625 - 400
(Side)^2 = 225
Side = √225
Side = 15
________
[tex] \: [/tex]
a² = c² - b²
a² = 25² - 20²
a² = 625 - 400
a² = 225
a = √225
a = 15
