Triangle Congruence and Properties

The video tutorial explains how to prove two triangles are congruent using the side-angle-side postulate. It begins by introducing the four postulates for triangle congruence and then sets up a proof to show that triangle MNP is congruent to triangle ONP. The proof is organized in a two-column format, detailing each step with reasons, such as the definition of a midpoint and the reflexive property. The tutorial concludes by ensuring the correct listing of congruent triangles and hints at a second example in the next part.

Which of the following is NOT a postulate used to prove triangle congruence?

• Angle, Angle, Angle

• Angle, Side, Angle

• Side, Side, Side

• Side, Angle, Side

What is the given condition about point N in the problem?

• N is the midpoint of segment OP

• N is the midpoint of segment PN

• N is the midpoint of segment MO

• N is the midpoint of segment MP

What is the significance of segment PN being perpendicular to segment MO?

• It creates two congruent segments

• It creates two acute angles

• It creates two right angles

• It creates two obtuse angles

Which property is used to state that segment PN is congruent to itself?

• Transitive Property

• Symmetric Property

• Reflexive Property

• Substitution Property

What is the final step in proving the triangles are congruent?

• Using the Angle, Side, Angle postulate

• Using the Side, Side, Side postulate

• Using the Side, Angle, Side postulate

• Using the Angle, Angle, Side postulate