Answer:
They are equal
Step-by-step explanation:
All the sides are equal, because you use the pythagoreon theorem to find out that all the sides are equal.
Answer would be -4 5/12
Hope that helps.
If they’re all weighted equally, then your average grade will be 79.9%
Do you know how many degrees an angle is?
Answer:
Given sides 12, 16 and 20 can be the sides of right triangle.
Step-by-step explanation:
Sides of right triangle always follow the Pythagoras theorem.
i.e 
For the given Lengths 7, 40 and 41
We need to check if


That means, 
hence 7,40 and 41 can not be the sides of right triangle.
Next,
Given sides 12,16 and 20.
Again follow the similar process used in the above problem.

Therefore given sides 12,16 and 20 can be the sides of right triangle.