Question

perimeter of rectangle is 320 its sides are in the ratio of 5:3 then its area is​

Answer 1

Answer:

Perimeter = 320

Total parts :- 5+3 = 8

Equal part = 320/8 => 40

So

Ratio => 200/120

Answer 2

$\Huge{\color{blue}{\underline{\underline{Answer:-}}}}$

${\text{Let the sides be 5x and 3x respectively}} \\ \sf perimeter=320\\ \sf 2(l+b)=320 \\ \sf 5x+3x=160 \\ \sf 8x=160\\ \sf x=20 \\ {\boxed{l=100}} \\ {\boxed{b=60}} \\ \sf {\boxed{\pink{Area=l×b}}}\\ \sf\to 100×60 \\ \sf \to 6000m$