Question

The diameter of a circular park is 80m.Find its surface area.

Answer 1

Answer:

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Answer 2

Answer:

Area of the square inside a circle will be maximum when the diameter of the circle is equal to the diagonal of the square.

Diameter of the circular park = 80 m

In square ABCD,

Let the side of the square-shaped playground be a.

Diagonal of the square-shaped playground = a √2

For the area of square-shaped playground to be maximum.

Diagonal of the square-shaped playground = Diameter of the circular park

a√2 = 80

a = 80/√2

Area of the square-shaped playground = a2 = (80/√2)2 = 6400/2 = 3200 m2