Number of vertices of a triangular prism is ______ number of vertices of a square pyramid.

A man is standing facing North. In which direction will he face, if he makes
(a) $1\frac{1}{2}$ revolution clockwise? 

(b)$\frac{3}{4}$ revolution anti-clockwise?

State ‘T’ for true and ‘F’ for false.

          (a) A quadrilateral is a five sided polygon.

         ( b) All the four sides of a rhombus are equal.

         (c) A trapezium has all angles equal.

         (d)  Half of a revolution is a straight angle.  

(i) The opposite sides of a parallelogram are $\underline{P }$and $\underline{Q}$.
(ii) A quadrilateral having only one pair of opposite sides parallel is called a $\underline{R}$.
(iii) A parallelogram having all sides equal is called a $\underline{S }$.