Question

how many circular discs each of 4 cm radius can be cut from rectangular metal sheet with dimension 75 cm and 48 cm

Answer 1

(i) 71 circles are cut.
(ii) 76 circles are cut

Answer 2

70 circular discs each of 4 cm radius can be cut from rectangular metal sheet with dimension 75 cm and 48 cm

Step-by-step explanation:

Length of rectangular sheet = 75 cm

Breadth of rectangular sheet = 48 cm

Area of sheet = $Length \times Breadth = 75 \times 48 = 3600 cm^2$

Radius of circular sheet = 4 cm

Area of circular sheet =$\pi r^2 =3.14 \times 4^2 =50.24 cm^2$

No. of circular discs each of 4 cm radius can be cut from rectangular metal sheet with dimension 75 cm and 48 cm = $\frac{3600}{50.24}=71.65$

So, 70 circular discs each of 4 cm radius can be cut from rectangular metal sheet with dimension 75 cm and 48 cm

#learn more:

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

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