Question

An ox tied to a pole situated at one of the corners of a field, with 10 m long rope. The ox moves keeping the rope tight. Find the area of the ground swept by the rope.

• A. $31.4m^2$
• B. $614m^2$
• C. $314m^2$
• D. $416m^2$

Answer 1

The correct option is C

$314m^2$

If the ox will move around the pole with the rope tied, then

the pole where the ox is tied will be the centre of the circle and length of the rope will be the radius=10 m.

So, Area of circle =$\pi r^2=3.141\times {10}^2=314m^2$