find the area of square park whose perimeter is 90cm
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let sides of sqare park be a.
perimeter of square park = 90 cm
or, 90 = 4×a
or,90/4 = a
or,a = 22.5 cm
area of square park = a×a
=22.5×22.5
=506.25cm^2
area of sqare park is 506.25 cm ^2 .
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LET THE SIDE OF SQUARE BE A CM.
PERIMETER OF SQUARE=4 X A
90=4 X A
A=90/4
A=22.5CM
AREA OF SQUARE=(SIDE) X (SIDE)
=22.5 X 22.5
=506.25 sq cm
This is the correct answer.
HOPE IT HELPS.