Question

Perimeter of a rectangle is 91 mtr. Its length and width is in the ratio of 8:5. Find the area.
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Answer 1

Answer:

490m²

Step-by-step explanation:

Let, L=8x , B=5x

Now,

P=2(L+B)

91=2×13x

x=7/2m.

Area = LxB = 8x×5x = 40x² = 40×(7/2)² = 490m².

Answer 2

2(l+b) = perimeter

Ratio= 8:5

Let the length be 8x and 5x.

2(8x+5x) =91.

2 x 13x = 91

X = 91/26

X= 7/2

Length is 28 mts

Breadth is 35/2 mts

Area = L x B

= 28 x 35/2

= 14x35 = 490 sqmts.