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Q: What CANNOT be used to prove triangles congruent ASA. SSS. SAS.?

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SSA

Before using Corresponding Parts of a Congruent Triangle are Congruent theorem (CPCTC) in a geometric proof, you must first prove that there is a congruent triangles. This method can be used for proving polygons and geometrical triangles.

The answer depends on what is known about the two triangles.The answer depends on what is known about the two triangles.The answer depends on what is known about the two triangles.The answer depends on what is known about the two triangles.

SSS is a postulate used in proving that two triangles are congruent. It is also known as the "Side-Side-Side" Triangle Congruence Postulate. It states that if all 3 sides of a triangle are congruent to another triangles 3 sides, then both triangles are congruent.

Once you prove that a diagram is congruent then you can say that all the parts are congruent.

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SSA

You can't use AAA to prove two triangles congruent because triangles can have the same measures of all its angles but be bigger or smaller, AAA could probably be used to prove two triangles are similar not congruent.

The SAS theorem is used to prove that two triangles are congruent. If the triangles have a side-angle-side that are congruent (it must be in that order), then the two triangles can be proved congruent. Using this theorem can in the future help prove corresponding parts are congruent among other things.

AAA (angle angle angle) cannot be used as a reason in a proof when proving triangles congruent .

Before using Corresponding Parts of a Congruent Triangle are Congruent theorem (CPCTC) in a geometric proof, you must first prove that there is a congruent triangles. This method can be used for proving polygons and geometrical triangles.

dick

The first thing you prove about congruent triangles are triangles that have same side lines (SSS) is congruent. (some people DEFINE congruent that way). You just need to show AAS is equivalent or implies SSS and you are done. That's the first theorem I thought of, don't know if it works though, not a geometry major.

The answer depends on what is known about the two triangles.The answer depends on what is known about the two triangles.The answer depends on what is known about the two triangles.The answer depends on what is known about the two triangles.

Side-Angle-Side is a rule used in geometry to prove triangles congruent. The rule states that if two sides and the included angle are congruent to two sides and the included angle of a second triangle, the two triangles are congruent. An included angle is an angle created by two sides of a triangle.

SSS is a postulate used in proving that two triangles are congruent. It is also known as the "Side-Side-Side" Triangle Congruence Postulate. It states that if all 3 sides of a triangle are congruent to another triangles 3 sides, then both triangles are congruent.

Once you prove that a diagram is congruent then you can say that all the parts are congruent.

Both are used to prove triangles congruent. ASA means there are 2 sets of corresponding congruent angles with 1 set of congruent sides between them. AAS means there are 2 sets of corresponding congruent angles and 1 set of congruent sides that is not between the angles.

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