Answer:
Answer 1 - X = 5 Answer 2- YES
Explanation:
x= 5 A^2+B^2=C^2 ~ ~ AKA the sum of the legs squared = the length of the hypotenuse squared (find the square root and that is the length of the hypotenuse or side C
3^2+4^2=5^2
18, 24, and 20 are all multiples of 6, aka its the same triangle as question 1, just enlarged by the power of 6.