Question

Which side lengths form an obtuse triangle? 0 28, 96, 100 O 40, 75, 85 O 17, 18, 19 O 2, 5,8 O 4, 5, 6

Answer 1

Solution

For this case in order to have an obtuse angle we need to satisfy this:

$c^2>a^2+b^2$

And we can verify that: