the breadth of a rectangle is half its length also the length of rectangle is equal to the radius of a circle of area 154cm. what is the perimeter of the rectangle?
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Let the length be x.
Then,breadth will be x divided by 2
Area of circle=pie into r square
So pie = 22/7
154cm=22/7 multiplied by r2
154 into 7/22=r square
R square= 49
So r=7
R=length=7cm
Breadth=3.5cm
Perimeter = 2(7+3.5)
Perimeter=2(10.5)
Perimeter=21cm
Then,breadth will be x divided by 2
Area of circle=pie into r square
So pie = 22/7
154cm=22/7 multiplied by r2
154 into 7/22=r square
R square= 49
So r=7
R=length=7cm
Breadth=3.5cm
Perimeter = 2(7+3.5)
Perimeter=2(10.5)
Perimeter=21cm
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