I'd love to.... however, I can only get in if I have an account. ARG! Do you mind posting the problems here?
Here's a hint.
We need to use the Pythagorean Theorem to figure out the lengths of all of the side lengths. Then, add the side lengths and then multiply that by 2.5. Tell me what you get, and I will check it. :D
guest, were you responding to Cal?
Yes it is definitely a Pythorean question
Why is anyone multiplying by 2.5?
Here is the question:
Here is the answer:
In any triangle, if the square on the longest is equal to the sum of the squares on the other 2 sides then the triangle MUST be right angled.
In this triangle, the square on the longest side is 13^2 = 169
the sum of the squares on the other two sides is 5^2+12^2= 25+144 = 169
since they are equal this has to be a right-angled triangle.