Answer: 1/6
Step-by-step explanation:
To check if distances can be a triangle add the smaller two distances together. If the sum is larger (not equal to) than the longest distance then it is a possible side. For example, 2,2,4 or 1,2,5cannot be a triangle, 2,3, 4 can be a triangle because 2+3 is greater than 4.
Answer:

Step-by-step explanation:

Subtract the numerator exponent from the denominator exponent.

Yes the ratio would change because it needs 3 times more than the original amount so you would multiply it by 3
52=x because x+128=180 and that is a 189 angle