By the time that tractor makes a complete resolution, it has covered the perimeter(circumference) of the circle.
How do we calculate the perimeter of the circle? 2πr !
You gave me an already cooked pie...
Haha, we are given pi to be
The circle's diameter is 1.4m, so it's radius is
cm, which is 70cm.(Note that I converted the units to cm to make our calculations easier.)
2πr therefore equals;
Thus, the wheel covers a distance of 440cm in one complete revolution.
In 100 revolutions therefore, the wheel covers a distance of;
(440 × 100)cm = 44000cm.
The value's unit in the question is in metres.
Therefore, the tractor's wheel covers a distance of 440metres
in 100 complete revolutions.