Question

if the length and breadth of a rectangular
field are in ratio 4:3 and perimeter
is 70 cm. Then find the length, breadth
and area of rectangular field.
​

Answer 1

Answer:

Step-by-step explanation:

let the length be 4x,

and the breadth be 3x.

Perimeter of the rectangular field = 70cm. given)

Perimeter of rectangle = 2 x ( l+b)

⇒ 70cm = 2 x ( 4x+3x)

⇒ 70 cm = 2 × 7x

⇒ 70 cm = 14x

⇒ x = 70÷14 cm

⇒ x = 5 .

Now, length of rectangle = 4x = 4× 5 = 20cm

and breadth = 3x = 3×5 = 15 cm.

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Answer 2

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Length = 20 cm

BREADTH = 15 cm

Area = 300 cm²