Question

1Find the area of square garden with side 30 m.

2. Find the perimeter of a square with side 12 m.

3. The weight of 72 books is 9 kg . What is the weight of 40 such books.​

Answer 1

Answer:

Area of the square garden=\left(side\right)^2(side)

2

=30m\times30m=900m^2=30m×30m=90

2

1 answer

Length if the garden excluding the path= =30m-2\times1m=28m=30m−2×1m=28m

Area of the garden excluding the path=

28m\times28m=784m^228m×28m=784m^

answer 2

P=48m

side = a12m

Solution

P=4a=4·12=48m

answer 3

the weight of 40 books is 5kg.

i hope its help you

Answer 2

QUESTION-1 :-

Given :-

Side of square garden is 30m

To find :-

Area of square

SOLUTION:-

As we know that ,

$Area \: \: \: of \:\: square = x^{2} \\ where \: \: x= side \:of \: square$

So,

$Area = (30)^{2}$

$Area = 900 m^{2}$

So, area of square with side 30m is 900m²

____________________________________________________

QUESTION -2

Given :-

Side of a square is 12m

To find :-

Perimeter of square

SOLUTION :-

As we  know that,

Perimeter of square is 4x (x= side)

So,

Perimeter = 4(12)

Perimeter = 48m

So, perimeter of square whose side 12m is 48m

___________________________________________________

QUESTION - 3

Given :-

Weight of 72 books is 9kg

To find:-

Weight of 40 books

SOLUTION:-

As they given weight of 72books is 9kg that means

Weight of one book = 72/9

Weight of one book = 8kg

So,

Weight of 40 books = 40(8)

Weight of 40 books = 320kg

So, the weight of 40 such books is 320kg

__________________________________________________