Question

For example the shaded region shown for the following closed figure represent
F. AREA:
area.
The amount of surface occupied by closed figure is called its Area
1
SOLARE​

Answer 1

Answer:

Pulley is used to change the direction of a rope or a chain. The actual rotation of the pulley wheel is a side effect. Wheel and axle are used to amplify rotational force. The force can be provided through a rope wrapped around the wheel, but the change of direction is a side effect.