Question

There is a circular field of area of approximately 500 metre square. How you can find its area accurately by using a measuring tape

Answer 1

Explanation:

By using a rope of measurable length, we can measure the perimeter of the field.

This perimeter in terms of rope length can be measured accuratley with the help of measuring tape, by measuring the length of the rope.

Once perimeter is found accuratley, we can calculate the redius of the field, using formula

Perimeter of circle = 2π r

After calculating the redius, area of the field can be calcuated as,

Area of the circular section = π r²

Answer 2

Answer:

using measuring tape,measure the diameter of the circular field ie from one side of the circular field to the other side. Now divide the diameter by 2 which gives radius of circular field.

Explanation:

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