Question

From a rectangular metal sheet of length 140 cm and width 70 cm, circular shapes of 3 Cm radius were cut out. What is the maximum number of circular cutouts possible in rows and columns and aiso state the area of the sheet left out?

Fast​

Answer 1

Step-by-step explanation:

Diameter of largest circle-length of the smallest side of rectangle

Area of rectangle=l* b=30*20=600cm

2

Area of circle=Tr

2

2

d

)

2

= Pi x(

2

20

)

2

=314.16cm

2

Remaining area=600-314.16=285.84cm

2

Answer 2

Answer:

Diameter of largest circle-length

smallest side of rectangle

of the

Area of rectangle-lxb=30×20=600cm

Area of circle=Tr

=314.16cm

Remaining area=600-314.16-285.84cm