LT 21 Proving Quadrilaterals

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides, four vertices, and four angles.

Front

Name two figures that are always quadrilaterals with all sides congruent.

Back

Square and rhombus.

Front

What are the properties of a parallelogram?

Back

In a parallelogram, opposite sides are congruent, opposite angles are congruent, and consecutive angles are supplementary.

Front

Is a square a type of parallelogram?

Back

Yes, a square is a special type of parallelogram with all sides congruent and all angles equal.

Front

What must be true for a quadrilateral to be classified as a parallelogram?

Back

At least one pair of opposite sides must be both parallel and congruent.

Front

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

Back

The sum of the interior angles of a quadrilateral is 360 degrees.

Front

If two opposite sides of a quadrilateral are congruent and parallel, what can be concluded?

Back

The quadrilateral is a parallelogram.

Front

What is a rhombus?

Back

A rhombus is a quadrilateral with all sides congruent and opposite angles equal.

Front

What is the difference between a rectangle and a rhombus?

Back

A rectangle has all angles equal to 90 degrees, while a rhombus does not require right angles.

Front

What is a kite in geometry?

Back

A kite is a quadrilateral with two distinct pairs of adjacent sides that are congruent.