Answer:
hypotenuse=h
h = 1 + 1,5
h= 2,5
h²= catheto²+catheto²
2,5² = 1,5² + x²
x²= 2,5² - 1,5²
x²= 6,25 - 2,25
x²=4
now you have to do the square root of 4 which is 2 (2×2 = 4)
x= 2
