Question

a carpenter is framing an opening in a wall to hang a rectangular door. which properties must the door frame have to ensure that the door hangs properly? check all that apply.
the top and bottom are parallel.
the top and right side form a right angle.
the bottom and right side are congruent.
the left side and right side are parallel.
the left side and bottom form a right angle.

Explanation:

A rectangle has opposite sides parallel (so top - bottom and left - right are parallel) and all angles are right angles (so top - right, left - bottom etc. form right angles). The bottom and right side are not congruent (a rectangle has opposite sides congruent, adjacent sides are not necessarily congruent unless it's a square).

Answer:

• The top and bottom are parallel.
• The top and right side form a right angle.
• The left side and right side are parallel.
• The left side and bottom form a right angle.