Question

The ratio between the length and breadth of a rectangle is 5:3. If the area of the rectangle is 135 cm", find the perimeter of the rectangle. (a) 32 cm (b) 48 cm (c) 24 cm (d) 36 cm​

Answer 1

2 (l+b)

2(5X+3X)

2(8X) = 135

X = 135÷16

X thevai put value of X in 5X and 3X

pls mark me the brainleast

Answer 2

Answer:

given:-

ratio of length and breadth=5:3

let length= 5x

breadth=3x

now,

area=135 cm²

find perimeter

solution:-

area of rectangle=l×b

5x×3x=135

15x²=135

x²=135/15

x²=9

x=3

now,l=5x

=5×3=15 cm

b=3x

=3×3=9cm

perimeter of rectangle=2(l+b)

=2(15+9)

2(24)

=48 cm ans