Question

A sheet is 11 cm long and 2 cm wide. Circular pieces 0.5cm in diameter are cut from it to prepare discs. Calculate the number of discs that can be prepared.
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Answer 1

Answer:

Solution;-

Total number of discs can be prepared = Area of the sheet/Area of one circular disc

Area of the sheet = L*B

Area of one circular disc = πr²

Area of the sheet = 11*2 = 22 sq cm

Area of one circular disc = 22/7*0.25*0.25

⇒ (22)/(22/7*0.0625)

⇒ 112 discs

So, total 112 discs can be prepared.

Answer 2

Total number of discs can be prepared = Area of the sheet/Area of one circular disc

Area of the sheet = L*B

Area of one circular disc = πr²

Area of the sheet = 11*2 = 22 sq cm

Area of one circular disc = 22/7*0.25*0.25

⇒ (22)/(22/7*0.0625)

⇒ 112 discs

So, total 112 discs can be prepared.

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