Question

the perimeter of a rectangle is 13cm and it's width is 3 whole 2/4 cm. Find its length ​

Answer 1

Answer:

Given

Perimeter = 13cm

Width = 3 whole 2/4 =14/4

Length = ?

Step-by-step explanation:

We Know That (W.K.T)

Perimeter of a rectangle = 2(l + b)

According to the Question (A/Q)

Perimeter of a rectangle = 2(l + 14/4)

=>13 = 2l + 2*14/4

=>13 = 2l +14/2

=>13 = 2l + 7

=>13 - 7 = 2l

=>6 = 2l

=>6/2 = l

=>3 = l

Therefore,l = 3.

=>

Answer 2

Answer:

perimeter of the rectangle is equals to 13 cm

with is equals to 3 whole 2 / 4 cm

let the length of the rectangle = x

as we know the perimeter of a rectangle is equals to

2 × (l+b).

perimeter = 2×(l+b)

breadth = 3 whole 2/4cm = 14/4cm

2×(14/4cm + x ) = 13 cm

2 × 14/4 + 2x = 13cm

7cm + 2x =13cm

2x = 13cm - 7cm

x = 6/2 cm

x = 3cm

so the length is equals to 3 cm.

Step-by-step explanation:

if you check it then and width + length = 14/4 + 3 cm = 6.5cm

perimeter = 2 × (l+b)

2 × 6.5 = 13cm.