Question

Side of a rectangle are in the ratio 5:12 if the perimeter of a rectangle is 34 cm find the area of rectangle

Answer 1

Let the sides be 5x and 12x

Peimeter = 2*(5x+12x)= 34 x

implies x=1

Therefore sides are 5 cm and 12 cm

Area = 5*12 = 60 cm²

Answer 2

Here is your solution

Given :-
ratio 5:12
perimeter is 34cm

Let,
the sides be 5x and 12x.

perimeter of rectangle =2 (l+b)

=>34=2(5x+12x)
=>34=34x
=>x=1

breadth =5x=5×1=5
length =12x=12×1=12

5 cm and 12 cm are the sides of the rectangle.

area of rectangle =l×b=5×12=60cm^2

hope it helps you