Question

It is being very hard for me please help me solving this

Answer 1

Answer:

i) c. 25 cm^2

ii) c. 400 cm^2

iii) a. 20 cm

Step-by-step explanation:

i) Given, side of the square stamp = 5 cm

Area of Square = side^2 = 5cm^2 = 5^2

Area of stamp= 25 cm^2

ii) Given, area of the stamp = 25 cm^2

No. of stamps = 16

Area of the square sheet = ?

area of stamp * no. of stamps

25 cm^2 * 16 = 25*16

area of sheet = 400cm^2

iii) given, area of square sheet = 400 cm^2

length of each side = ? (square has all sides equal)

area of square = side^2 = 400 cm^2

s^2=400

square is transposed to the RHS, it becomes square root

s=$\sqrt{400$

s= $\sqrt{(20)^2}$

(sq. root, sq. cancelled)

s=20cm

Hope it helps

Answer 2

Answer:

Given,

Side of a stamp = 5cm

No. of stamps = 16

• Area of a stamp = Side²

5 × 5 cm = 25cm²

• Total no. of stamps = 16

So area of paper will be 16 × 25 cm

= 400 cm²

ATQ, S² = 400cm²

$side \: = \sqrt{400cm ^{2} } \\ \: \: \: = 20 \: cm$

So these are you answers,

Hope it will help you

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