Basic Geometrical Ideas
Exercise – 4.5
Ex 4.5 Question 1.
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?
Solution:
Ex 4.5 Question 2.
2. 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.
Solution:
(a) Two pairs of opposite sides =
,
and
,
(b) Two pairs of opposite angles = ∠KLM, ∠KNM and ∠LKN, ∠LMN
(c) Two pairs of adjacent sides =
,
and
,
or
,
and
,
(d) Two pairs of adjacent angles = ∠K, ∠L and ∠M, ∠N or ∠K, ∠L, and ∠L, ∠M
