Congruent Triangles and Angles Practice

Front

What are congruent triangles?

Back

Triangles that are identical in shape and size, meaning their corresponding sides and angles are equal.

Front

What does ASA stand for in triangle congruence?

Back

Angle-Side-Angle: A method to prove triangles are congruent if two angles and the included side are equal.

Front

What does SAS stand for in triangle congruence?

Back

Side-Angle-Side: A method to prove triangles are congruent if two sides and the included angle are equal.

Front

What does SSS stand for in triangle congruence?

Back

Side-Side-Side: A method to prove triangles are congruent if all three sides are equal.

Front

What does AAA stand for in triangle congruence?

Back

Angle-Angle-Angle: A method that shows triangles are similar but not necessarily congruent.

Front

What is the third angle of a triangle if two angles measure 30 and 70 degrees?

Back

80 degrees, because the sum of angles in a triangle is 180 degrees.

Front

What is the criterion for triangle congruence using RHS?

Back

Right angle-Hypotenuse-Side: A method to prove right triangles are congruent if the hypotenuse and one side are equal.

Front

What is the significance of corresponding angles in congruent triangles?

Back

Corresponding angles in congruent triangles are equal, which helps in proving triangle congruence.

Front

What is the significance of corresponding sides in congruent triangles?

Back

Corresponding sides in congruent triangles are equal in length, which is essential for proving triangle congruence.

Front

Can two triangles be congruent if only two angles are known?

Back

No, knowing only two angles does not guarantee congruence; the third angle must also be known.