Question

the length of a rectangle is thrice it's width if the perimeter of the rectangle is 64cm; find the length and the width of the rectangle​

Answer 1

Answer:

length = 24 cm

width = 8 cm

Step-by-step explanation:

Let width of the rectangle be x

then, it's breadth will be 3x

Perimeter of the rectangle = 2(l+b)

64 = 2(3x + x)

64 = 2 × 4x

64/2 = 4x

32 = 4x

32/4 = x

x = 8

width = x = 8 cm

length = 3x= 3×8 = 24cm

Answer 2

Answer:

sol:

Step-by-step explanation:

let length=l,width=m

3l=m

2(l+m) is perimeter

We know 3l=m so,

2(l+3l)=64

2(4l)=64

8l=64cm

l=8

we know that l=8,width=3l

width=3(8)

width=24cm