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Practice each question, then open the answer or worked solution.
Draw a rough sketch of a quadrilateral PQRS. Draw its diagonals. Name them. Is the meeting point of the diagonals in the interior or exterior of the quadrilateral?
PR and QS are the diagonals. They meet at point O, which is in the interior of the quadrilateral.
Draw a rough sketch of a quadrilateral KLMN. State,
(a) two pairs of opposite sides,
(b) two pairs of opposite angles,
(c) two pairs of adjacent sides,
(d) two pairs of adjacent angles.
(a) Two pairs of opposite sides are
, 
and 
, 
(b) Two pairs of opposite angles are ∠KLM, ∠KNM and ∠LKN, ∠LMN
(c) Two pairs of adjacent sides are
, 
and 
, 
or 
, 
and 
, 
(d) Two pairs of adjacent angles are ∠K, ∠L and ∠M, ∠N or ∠K, ∠L and ∠L, ∠M