Question

The adjacent sides of a rectangle are 16 and 9 cm . What will be the side of a square whose area is equal to that of triangle

Answer 1

area of the rectangle is 16×9 cm2=144cm2
let the side of the square be x cm
then,
according to your question
x2=144
x=12
therefore side of the required square is 12 cm

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Answer 2

Area of rectangle= 16×9=144
144= Area of square
144=s×s
S= 144 under square root
S= 12