Question

length of rectangle 1200 cm and its area is72m squre find its breadth and perimeter​

Answer 1

Step-by-step explanation:

perimeter =72=2(l+b)

72=2(5x+4+x−4)

36=6x

x=6 units

Answer 2

Given

• Length of the rectangle = 1200 cm
• Area of the rectangle = 72 m²

To find

• Breadth of the rectangle
• Perimeter of the rectangle

Solution

Firstly, we will make the units same.

Length of the rectangle = 1200 cm

As we know,

• 1 cm = 0.01 m

Divide the value by 100 m.

⟶ 1200/100

⟶ 12 m

★ Length of the rectangle = 12 m

Formula to be used :-

❖ Area of rectangle = l × b

where,

• l = length of the rectangle
• b = breadth of rectangle

Substituting the given values,

⟶ 72 = 12 × b

⟶ 72/12 = b

⟶ 6 = b

∴ Breadth of the rectangle = 6 cm

Formula to be used :-

❖ Perimeter of the rectangle = 2(l + b)

Substituting the given values,

⟶ Perimeter = 2(12 + 6)

⟶ Perimeter = 2(18)

⟶ Perimeter = 36 cm²

∴ Perimeter of the rectangle = 36 cm²