Correct Option is C , 181 square cms.
l = 11cm
b = 10cm
h = 12cm
Surface Area of Cuboid:
A cuboid has 6 rectangular faces, the surface area of the whole cuboid is the sum of 6 rectangular surface areas of cuboid.
surface area = l x b + b x h + h x l + l x b + b x h + h x l
Surface area of cuboid = 2 x ((l x b) + (b x h) + (h x l))
When the length of each side is cut in half so, l, b and h decreases by 2.
l = [tex]\frac{l}{2}[/tex] = [tex]\frac{11}{2}[/tex] = 5.5cm
b = [tex]\frac{b}{2}[/tex] = [tex]\frac{10}{2}[/tex] = 5cm
h = [tex]\frac{h}{2}[/tex] = [tex]\frac{12}{2}[/tex] = 6cm
Surface Area of the cuboid = 2 x ((l x b) + (b x h) + (h x l))
=> 2 x ((5.5 x 5) + (5 x 6) + (6 x 5.5))
=> 2 x (27.5 + 30 + 33)
=> 2 x (90.5)
=> 181 [tex]cm^{2}[/tex]
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