Rules For Quadrilaterals

Question 1

Trapezoid

Answer 1

• only ONE pair of opposite sides are parallel ( called bases )
• consecutive angles are supplementary

Mid segment of a trapezoid:
A mid segment of a trapezoid connects the midpoint of the legs. This segment is equal to the average of the two bases.

Question 2

Parallelogram

Answer 2

-opposite sides parallel
-opposite sides, congruent
-consecutive angles, supplementary
-diagonals bisect each other

Question 3

Isosceles trapezoid

Answer 3

• non-parallel sides, ( legs ) are congruent
• diagonals are congruent
• base angles are congruent
• opposite angles are supplementary

Question 4

Rhombus

Answer 4

• 4 congruent sides
• diagonals are perpendicular
• diagonals bisect opposite angles

Question 5

Rectangle

Answer 5

• 4 right angles
• diagonals are congruent

Question 6

Square

Answer 6

-opposite sides parallel
-opposite sides, congruent
-consecutive angles, supplementary
-diagonals bisect each other

• 4 congruent sides
• diagonals are perpendicular
• diagonals bisect opposite angles
• 4 right angles
• diagonals are congruent

Squares have ALL the properties of parallelograms, rectangles, and rhombi.