Question

If a triangle has one obtuse angle , then it is and obtuse triangle. Then what is a statment that is contrapositiveof that?

Answer 1

the contrapositive of
if p then q
is
if not q then not p

Answer 2

So you to negate the part that comes after the then part
and to negate the part that comes before the then part

Answer 3

how do you negate "it is an obtuse triangle"

Answer 4

If it is an obtuse triangle, then it doesn't have one obtuse angle.
This is one of those questions where, had you studied, it would be easy.

Answer 5

if it is not*