Question

19.
Joint
that
allows
only
a
back
and
forth
movement
is
called____________.


a.
Ball
and
socket
joint

c.
Pivotal
joint


b.
Hinge
joint


d.
Fixed
joint​

Answer 1

Answer:

6) A rectangular floor having length 3.5 m and breadth 2 m is covered with square tiles of side

50cm.

(i) How many tiles will be needed to cover the entire floor?

(ii) what is the cost of flooring if the cost per tile is Rs. 60 ?