Find the surface area of a cuboid:

110

unit

^{2}

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120

unit

^{2}

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130

unit

^{2}

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140

unit

^{2}

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Solution

The correct option is B $130$ unit $^{2}$
Surface area $= 2 ($ Length $\times$ width $+$ Length $\times$ height $+$ Width $\times$ height $)$

Length $= 5$ units; Height $= 5$ units; Width $= 4$ units

$= 2 \times (5 \times 4 + 5 \times 5 + 4 \times 5)$

$= 2 \times (20 + 25 + 20)$

$= 2 \times 65$

$= 130$ unit $^{2}$

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Similar questions

Q. Calculate the total surface area of a cuboid whose length is

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Q. Let the length, breadth and height of the cuboid be l units, b units and h units respectively. Given, area of three adjacent faces of the cuboid are:

120 c m^{2}; 72 c m^{2}; 60 c m^{2}

Q. Write the lateral surface area of a cuboid having length

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units, breadth

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units and height

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Find the median of the following data.

$\begin{matrix} C l a s s i n t e r v a l & 100 - 110 & 110 - 120 & 120 - 130 & 130 - 140 & 140 - 150 F r e q u e n c y & 6 & 9 & 14 & 2 & 19 \end{matrix}$

In the figure, (3, 4) is the mid-point of AB.

Find: Area of ΔAOB

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Find the surface area of a cuboid:

The correct option is B 130 unit 2Surface area =2(Length × width + Length × height + Width × height)Length =5 units; Height =5 units; Width =4 units=2×(5×4+5×5+4×5)=2×(20+25+20)=2×65=130 unit 2