Question

find the area of sheet or a paper whose perimeter is 60 CM​

Answer 1

Step-by-step explanation: We know the formula 2(l+b)

So, to find l and b, we must-

60/2= 30.

30 can be regrouped as 20+10.

The area is l*b

l= 20

b=10

Therefore, area = (20*10) cm

area will be 200 sq. cm.

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Answer 2

The area of square shaped sheet or paper=225 square cm

Step-by-step explanation:

Let x be the side of square sheet or a paper .

Perimeter of sheet=60 cm

We know that

Perimeter of square=$4\times side$

Using the formula

$60=4\times x$

$x=\frac{60}{4}=15$

Side of the sheet= 15 cm

Area of square=$(side)^2$

Using the formula

Area of square shaped sheet=$(15)^2=225cm^2$

Hence, the area of square shaped sheet or paper=225 square cm

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