You can
put this solution on YOUR website!
Given: In triangle ABC, angle
Proven: angel A
is not equal to
If you use an indirect proof, you need to assume what you need
, and then show that something contradictory (absurd) happens.
You will need following steps:
Assume that the
of what you are trying to prove is true; in
other words, assume that angle is
as we know,
of
a triangle is equal to
degrees.
you can solve for
.....it is
to have one of three angles in a
triangle equal to
So, you can conclude that, as it was proven, angel
is not equal to
