The perimeter of rectangle is 400 m . if the sides are in ratio 7:3 .

1.	The perimeter of rectangle is 400 m . if the sides are in ratio 7:3 . find the area
Answer» Answer: let 7x and 3x be the sides of the rectangle perimeter=400m 2(l+b) = 400m 2(7x+3x)=400 2 X 10x= 400 20x =400 x= 400/20 x= 20 then sides are 7x = 7 x 20 = 140m 3x = 3 x20 = 60 m

The perimeter of rectangle is 400 m . if the sides are in ratio 7:3 . find the area

Answer»

Answer:

let 7x and 3x be the sides of the rectangle

perimeter=400m

2(l+b) = 400m

2(7x+3x)=400

2 X 10x= 400

20x =400

x= 400/20

x= 20

then sides are 7x = 7 x 20 = 140m

3x = 3 x20 = 60 m

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The perimeter of rectangle is 400 m . if the sides are in ratio 7:3 . find the area​

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The perimeter of rectangle is 400 m . if the sides are in ratio 7:3 . find the area