Question

The length of the rectangle is 8 m more than its breadth. If the perimeter of the rectangle is 40 m.
Find their present ages.​

Answer 1

Answer:

The length and breadth of the rectangle when the perimeter is given as 40m is 6m and 14m

Step-by-step explanation:

Let the breadth of the rectangle be =x m

Length of the rectangle = x+8m

Perimeter of the rectangle = 40m

Perimeter = 2×[length+breadth]

Perimeter=2×[x+x+8m]

40m=2×[2x+8m]

40m=4x+16m

40m-16m=4x

24m=4x

x=24m/4

x=6m

There fore breadth is 6m and length is 6m+8 is 14m

Prove:

length=14m

breadth=6m

Perimeter=2×[length+breadth]

2×[6m+14m]

2×[20m]

40m

There fore it's proved

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