Answer:
First, take x off of both sides making it: “5 -4 = 3 + 10”
Then subtract 3, making it “3(-7) = 10”
Then do 3 multiply 3 by -7, getting -21 = 10
that is how you would find out the equation is false
I believe the answer is 3/14
not quite sure but thats my guess:)
It has to be at least 3cm to make it a right triangle