The surface area of a box- which is in the shape of a cuboid- and whose dimensions are 1 - b - h isA- 2 lb - bh - hl B - lb - bh - hlC- 2 lh - bh D- l h - bh

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Surface Area of a Cuboid

The surface a...

Question

The surface area of a box, which is in the shape of a cuboid, and whose dimensions are $l \times b \times h$ is__________.

2(lb + bh + hl)

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lb + bh + hl

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2(lh + bh)

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lh + bh

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Solution

The correct option is A
2(lb + bh + hl)

The surface area of a cuboid is nothiing but its total surface area, which is the outer area of the cuboid's 6 rectangular plates $(l, b), (b, h), (l, h), (l, b), (b, h), (l, h)$ .

Total surface area $= l b + b h + l h + l b + b h + l h = 2 (l b + b h + h l)$

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The surface area of a box, which is in the shape of a cuboid, and whose dimensions are l×b×h is__________.

The correct option is A 2(lb + bh + hl) The surface area of a cuboid is nothiing but its total surface area, which is the outer area of the cuboid's 6 rectangular plates (l,b),(b,h),(l,h),(l,b),(b,h),(l,h). Total surface area =lb+bh+lh+lb+bh+lh=2(lb+bh+hl)

The surface area of a box, which is in the shape of a cuboid, and whose dimensions are $l \times b \times h$ is__________.