Question

12. The area of a square park whose perimeter 320 m is :
(a) 1600 sq. cm (b) 6400 sq. cm (c) 800 sq. cm (d) 3600 sq.cm
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Answer 1

Answer:

Perimeter of square Park,given = 320 m

Perimeter of square= 4× side

therefore ; 320/4 = side

80m = side

now ;

area of square = side × side

therefore area = 80× 80 m sq.

area = 6400 m sq.

In cm = 6400× 100 = 640000 cm sq.