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Rs. 15.84, 3111.43 Sq.cm
Step-by-step explanation:
let length of metal sheet be L and breadth be B
Breadth B = 1 m = 100 Cm
Radius of cylindrical box r = 10 Cm
Height of cylindrical box h = 35 Cm
Area of cylindrical box = 2πrh + 2πr²
= 2*22/7*10*35 + 2*22/7*(10)²
= 2828.57 Sq.cm.
The area of box = Area of sheet,
L * B = 2828.57
L = 2828.57/100 = 28.29 cm.
Cost of 1 sq.m of sheet = 56
// 1 m = 100 cm
Cost of 10000 sq.cm = 56
Cost of 2828.57 sq.cm = 56 * 2827.57/100000 = Rs. 15.84
Area of metal sheet required when 10% is wasted = 2828.57*110/100 = 3111.43 Sq.cm
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