FLASHCARD- Triangle Congruence, Logic, Proofs

Front

What is a triangle with two congruent sides and two congruent angles called?

Back

Isosceles triangle.

Front

What is the statement for step 2 of the proof if ∆BAC≅∆DAC?

Back

∡BAC≅∡DAC.

Front

What is the converse of the statement 'If it is a duck then it has a beak'?

Back

If it has a beak, then it is a duck.

Front

How can you determine if two triangles are similar using SSS similarity?

Back

If the corresponding sides of two triangles are in proportion, then the triangles are similar (SSS Similarity).

Front

What is the missing piece of information required to prove triangles congruent if QY ≅ QY?

Back

QY ≅ QY is a reflexive property used in triangle congruence.

Front

What does AA similarity mean in triangle similarity?

Back

If two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar (AA Similarity).

Front

What is the definition of congruent triangles?

Back

Triangles that have the same size and shape, meaning all corresponding sides and angles are equal.

Front

What is the SAS similarity criterion?

Back

If two sides of one triangle are proportional to two sides of another triangle and the included angles are equal, then the triangles are similar (SAS Similarity).

Front

What is the definition of a scalene triangle?

Back

A triangle with all sides of different lengths.

Front

What is the definition of an equilateral triangle?

Back

A triangle with all three sides of equal length and all angles measuring 60 degrees.