from a rectangular metal sheet of size20 cm by 30, a circular sheet as big as possible is cut. find the area of remaining sheet. About the author Julia

Answer : 285.8cm² is the area of remaining sheet Given : Length is 20cm Breadth is 30cm To find : Area of remaining sheet Solution : Given, Length of rectangular metal sheet is 20cm Breadth of rectangular metal sheet is 30cm Diameter of circle is 20cm As we know that, Radius = D/2 》r = 20/2 》r = 10cm Radius is 10cm Now we have to find the area of circle As we know that, Area of circle = πr² Where, r is radius 》Area of circle = πr² 》22/7 × 10 × 10 》2200/7 》314.2cm² Now Area of rectangular sheet : Area of rectangular sheet = l × b Where , l is length 20cm and b is breadth 30cm 》20 × 30 》600cm Now , We have to find the area of remaining sheet : Area of remaining sheet = Area of circle- Area of rectangular sheet 》Area of remaining sheet = 314.2 – 600 》485.2cm² Hence ,285.8cm² is the area of remaining sheet Reply

Answer: Diameter of largest circle=length of the smallest side of rectangle Area of rectangle=l×b=30×20=600cm 2 Area of circle=πr 2 =π( 2 d ) 2 =π×( 2 20 ) 2 =314.16cm 2 Remaining area=600−314.16=285.84cm 2 . Reply

Answer:Given:Tofind:Solution:Given,

Diameter of circle is 20cm

As we know that,

》r = 20/2

》r = 10cm

Radiusis10cmNow we have to find the area of circle

As we know that,

Where, r is radius

》Area of circle = πr²

》22/7 × 10 × 10

》2200/7

》314.2cm²

Now Area of rectangular sheet :

Where , l is length 20cm and b is breadth 30cm

》20 × 30

》600cm

Now,Wehavetofindtheareaofremainingsheet:》Area of remaining sheet = 314.2 – 600

》485.2cm²

Hence,285.8cm²istheareaofremainingsheetAnswer:Diameter of largest circle=length of the smallest side of rectangle

Area of rectangle=l×b=30×20=600cm

2

Area of circle=πr

2

=π(

2

d

)

2

=π×(

2

20

)

2

=314.16cm

2

Remaining area=600−314.16=285.84cm

2

.