How many circular sheets of diameter 20cm can be cut out from a rectangular metal sheet of size measuring 160 - Maths - Perimeter and Area

Question

How many circular sheets of diameter 20cm can be cut out from a
rectangular metal sheet of size measuring 160 cm and 60 CM if the
circles are placed as shown in the figure (take Pi 3 14)

Mamta Joshi · Accepted Answer

dear student,

Area of the rectangular sheet = length * breadth
length = 160 cm
breadth = 60 cm
Area of the rectangular sheet = 160* 60 = 9600 cm2

Rea of the circular sheet = πr2
Diameter = 20 cm
radius = 10 cm

Area = 3 14×10×10 = 314 cm2

Number of circular sheet obtained from rectangular sheet =
9600314=30 57
So, 30 circular sheeta can be obtained

Regards