From a rectangular metal sheet of sides 14 cm and 21 cm, the largest possible circular sheet is cut off . Find the area of the remaining portion of the metal sheet.
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As the circle cut off is of the largest possible size,
Diameter = Breadth of rectangular sheet = 14 cm
Therefore,
Radius = Diameter/2 = 14/2 = 7 cm
Area of rectangle= length*breadth= 21*14= 294 cm²
Area of circle= πr² = 22/7 * 7 * 7 = 154 cm²
Remaining area of metal sheet--
Area of sheet- Area of circle =( 294-154)cm² = 140 cm².
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Answer:
area = 140 sp cm
Step-by-step explanation:
As the circle cut off is of the largest possible size,
Diameter = Breadth of rectangular sheet = 14 cm
Therefore,
Radius = Diameter/2 = 14/2 = 7 cm
Area of rectangle= length*breadth= 21*14= 294 cm²
Area of circle= πr² = 22/7 * 7 * 7 = 154 cm²
Remaining area of metal sheet--
Area of sheet- Area of circle =( 294-154)cm² = 140 cm².
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