Geometric Proofs
Problems
Prove the following statements indirectly.
Problem :
Given:
Triangle ABC is an isosceles triangle with base AC.Prove:
Segment BE is a median.
Segment BE is an angle bisector.
Problem :
Given: Circle F is inscribed in triangle ABC.
Prove: Angle DCF is congruent to angle ECF.
Problem : Use indirect reasoning to explain why a triangle cannot have more than one obtuse angle.





