Question

answer fast with explanation​

Answer 1

Question:

A rectangular piece of land measure 0.7 km by 0.5 km each side is to be fenced with 4 rows of wires what will be the required length of the wire needed?

Solution:

Given:

⇒ Length of rectangular piece of land = 0.7 km = 700 m.

⇒ Breadth of rectangular piece of land = 0.5 km = 500 m.

To Find:

⇒ Length of wire needed to be faced 4 rows.

Formula used:

⇒ Perimeter of rectangle = 2(l + b)

So, put the values in the formula,

⇒ Perimeter of rectangle = 2(l + b)

⇒ Perimeter of rectangle = 2(700 + 500)

⇒ Perimeter of rectangle = 2(1200)

⇒ Perimeter of rectangle = 2400 m = 2.4 km

The length needed for 1 row = 2.4 km

Now, the length needed for 4 rows = 2.4 × 4 = 9.6 km.

Answer 2

Correct question:

→ A rectangular piece of land measures 0.7 km by 0.5 km. Each side is to be fenced with 4 rows of wires. What is the length of the wire needed ?

$\huge\underline\green{\tt Solution :}$

Given,

→ Length of the rectangular land = 0.7 km

→ Breadth of the rectangular field = 0.5 Km

∵ Perimeter of rectangle = 2 ( length + breadth )

Now,

Substitute the given values in the formula

we get,

2 ( 0.7 + 0.5 )

= 2 × 1.2

= 2.4 Km

It is given that each side is to be fenced with 4 rows of wires. So, length of the wire needed = 2.4 × 4 = 9.6 km

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