1.

A cow is tethered to a peg with 7m long rope at the corner of a 35m long and 20m wide rectangular grass field, what area of the field will the cow graze ?

Answer»

Answer:

38.5 m ^2  

Step-by-step explanation:

GIVEN :A COW is tethered to a peg with 7 m long rope at the corner of a 35 m long and 20 m wide RECTANGULAR grass field,

To Find:  What area of the field will the cow graze ?

Solution:

The grazing area is the quarter of the circle of RADIUS of 7 m.

Area of the quarter of the circle = \frac{1}{4} \pi r^2

                                                      = \frac{1}{4} \times \frac{22}{7} \times 7^2  

                                                      = 38.5 m ^2  

38.5 m ^2Hence the cow graze  area of the field


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