The sides of a rectangle are in the ratio 3 : 7 and its area is 1029 cm. Then the dimensions of the rectangle are
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let sides be x cm.
then sides are 3x and 7x.
area=1029cm
area of rectangle = length x breadth
1029= 3x x 7x
1029= 21x^2
x^2= 1029/21
x^2=49
x=√49
x=7
dimensions=3x= 3 X x= 21cm
7x= 7 X x= 49 cm
therefore, the dimensions are 21cm and 49 cm
then sides are 3x and 7x.
area=1029cm
area of rectangle = length x breadth
1029= 3x x 7x
1029= 21x^2
x^2= 1029/21
x^2=49
x=√49
x=7
dimensions=3x= 3 X x= 21cm
7x= 7 X x= 49 cm
therefore, the dimensions are 21cm and 49 cm
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