Question

from a rectangular metal sheet of side 30 cm and 40 cm a circular sheet as big as possible is cut of find the area of the remaining sheet​

Answer 1

Answer:

492.86 cm²

Step-by-step explanation:

The largest circle possible from a rectangular metal sheet of 30 * 40 will have the diameter of 30 cm  (radius = 15cm).

Area of the circle                       =  πr²   =   15 * 15 * 22/7 =  707.14 cm²

Area of the rectangular sheet  =  l * b   =  30 * 40           =  1200  cm²

Area of the remaining sheet     =   1200 - 707.14             =  492.86 cm²