Question

4.

a) Suppose you have a rectangular shaped roof of length 40 metre and breadth 20 metre and you want to put

pots on its entire boundary at every one metre on the roof, then how many pots you can put on that roof?​

Answer 1

Step-by-step explanation:

Breadth= 22cm

Perimeter of the rectangle= Length of the wire

=2(l+b)= 2(40cm + 22cm)

=2\times622×62cm = 124cm

Now, the wire is rebent into a square.

Perimeter= 124cm

4\times side=1244×side=124

Therefore side= \frac{124}{4}

4

124

cm= 31cm

So, the measure of each side= 31cm

Area of rectangular shape= l\times bl×b

=40cm\times22cm40cm×22cm

=880cm^2880cm

2

Area of a square shape= \left(Side\right)^2(Side)

2

=\left(31\right)^2=961cm^2(31)

2

=961cm

2

Since 961cm^2\ >\ 880cm^2961cm

2

> 880cm

2

Hence, the square encloses more area.

Answer 2

Answer:

a) Suppose you have a rectangular shaped roof of length 40 metre and breadth 20 metre and you want to put

pots on its entire boundary at every one metre on the roof, then how many pots you can put on that roof?

the answer is 800 metre