Please give me the answers of these questions. It's too urgent
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Answer:
Step-by-step explanation:
1). m∠APB = 80°
2). A quadrilateral with 10 sides is nonsense!!!! The task is incorrect.
3). n = 3
5). (i). A rectangle is a convex quadrilateral because both diagonals lie in its interior.
(ii). Opposite lines of square are parallel and opposite angles of square are congruent so square is a parallelogram.