Question

more pythagorean theory just different

Answer 1

the same as the previous question, a^2 + b^2 = c^2 where c is the hypoteneuse(the longest part of the right angled triangle)

Answer 2

a and b doesn't matter which you choose it as

Answer 3

so just 40^2+ b^2= 41^2

Answer 4

yes

Answer 5

solving for b will give you the length of the unknown