Parallelograms, Rectangles, Rhombi, Squares, Flashcard #2

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) with opposite sides that are both equal in length and parallel.

Front

What are the properties of a rectangle?

Back

A rectangle is a parallelogram with four right angles. Opposite sides are equal in length.

Front

Define a rhombus.

Back

A rhombus is a parallelogram with all four sides of equal length.

Front

What is a square?

Back

A square is a special type of rectangle and rhombus that has all sides equal and all angles right angles.

Front

How do you determine if two triangles are congruent?

Back

Two triangles are congruent if their corresponding sides and angles are equal. Common criteria include ASA (Angle-Side-Angle), AAS (Angle-Angle-Side), and HL (Hypotenuse-Leg for right triangles).

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a criterion for triangle congruence where two angles and the included side are known.

Front

What does AAS stand for in triangle congruence?

Back

AAS stands for Angle-Angle-Side, a criterion for triangle congruence where two angles and a non-included side are known.

Front

What does HL stand for in triangle congruence?

Back

HL stands for Hypotenuse-Leg, a criterion for triangle congruence applicable to right triangles.

Front

If XV = (27 – 2x) and VZ = (3x + 2), how do you find XZ?

Back

Set XV equal to VZ and solve for x. Then substitute x back into either expression to find XZ.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.