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4.

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

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?

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Mathematics
2 years
2021-06-22T02:38:40+00:00
2021-06-22T02:38:40+00:00 1 Answers
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## Answers ( )

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.