Answer:
181cm^2
Step-by-step explanation:
The minimum amount of paper needed to make the cup to the nearest whole number will be = to the surface area of the cylinder = A=2πrh+2πr2.
Where π= 22/7, r = 2.5cm, h = 9cm
A = 2×22/7×2.5×9+2×22/7×2.5×2.5
A= 141.428+39.285
A= 180.713
A = 181cm^2
