It'll be 4^2+ 3^2 then the answer you get you take the square root of it which will give you the hypotenuse. Your answer would be 5 because square root of 25 is 5 If u want the formula it's a^2+b^=c^2 C is the hypotenuse and a and b is the lengths
1 step:, , then . 2 step:, then and will have form . 3 step: Solve this system and dividing first equation on second we obtain . So, and , - the common ratio. 4 step: Insert into equation and obtain , from where .