Question

The length of a rectangular field is thrice its breadth If its area is 75m2 Find the perimeter of the rectangular field​

Answer 1

Answer:

Answer is 40m

Step-by-step explanation:

Refer to pic for detailed Solution.

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Answer 2

Answer:

40m

Step-by-step explanation:

Define x:

Let the breadth of the rectangle be x

The length of the rectangle will be 3x

Find the area of the rectangle in term of x:

Area = Length x Breadth

Area = x(3x)

Area = 3x²

Solve x:

3x² = 75

x² = 25

x = 5

Find the length and breadth:

Breadth = x = 5 m

Length = 3x = 3 x 5 = 15 m

Find the perimeter:

Perimeter = 2(Length + Breadth)

Perimeter = 2(5 + 15)

Perimeter = 2(20)

Perimeter = 40 m