Question

A 19m long hall has a floor area of the 247m2 find its breadth and perimeter .

Answer 1

Step-by-step explanation:

64 m answer... hogaaaaa

Answer 2

Given :

• Length of the floor = 19 m
• Area of the floor = 247 m²

To Find :

• Breadth of the floor.
• Perimeter of the floor.

Solution :

Analysis :

Here first we have to find the length of the floor using the area. Then after getting the breadth we can find the perimeter using suitable formula.

Required Formula :

• Area = Length × Breadth

• Perimeter = 2(Length × Breadth)

Explanation :

Let the breadth of the rectangle be “b” m.

We know that if we are given the length and area of a rectangle and is asked to find the breadth of the rectangle then our required formula is,

Area = Length × Breadth

where,

• Area = 247 m²
• Length = 19 m
• Breadth = b m

Using the required formula and substituting the required values,

⇒ Area = Length × Breadth

⇒ 247 = 19 × b

⇒ 247/19 = b

⇒ 13 = b

∴ Breadth = 13 m.

Now, as we have got the breadth we can find the perimeter of the floor.

We know that if we are given the length and breadth of a rectangle and is asked to find the perimeter of the rectangle then our required formula is,

Perimeter = 2(Length × Breadth)

where,

• Length = 19 m
• Breadth = 13 m

Using the required formula and substituting the required values,

⇒ Perimeter = 2(Length × Breadth)

⇒ Perimeter = 2(19 + 13)

⇒ Perimeter = 2(32)

⇒ Perimeter = 2 × 32

⇒ Perimeter = 64

∴ Perimeter = 64 m.

Breadth of the floor = 13 m.

Perimeter of the floor = 64 m.