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If the length, breadth and height of a cuboid are equal, then its surface area is

6l^{2}

6b^{2}

6h^{2}

All of these

Surface area of the cuboid = 2(lb + bh + lh)

= b = h = x

Surface area of the cuboid = 2(3x^{2}) = 6x^{2} = 6l^{2} = 6b^{2} = 6h^{2}

Surface area of a cylinder is the sum of the areas of

Lateral surface

Circular top

Circular base

Surface area of a cylinder is the sum of the areas of the lateral surface, circular top and circular base.

Total surface area of a cone is

Curved surface area

Area of the base

Curved surface area + Area of the base

Subtraction of A and B

Total surface area of a cone is the sum of the curved surface area and the area of the base.

Total surface area of a hemisphere is

Curved surface area of the hemisphere

Area of the base + Curved surface area of the hemisphere

None of these

Total surface area of a hemisphere is the sum of the area of the base and the curved surface area of the hemisphere.

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