find the volume and surface area of a cuboid 16 m long, 14 m broad and 7 m high. Choose the correct choice:  A) 878 cm ^ 2  B) 858 cm ^ 2  C) 838 cm ^ 2  D) 868 cm ^ 2  E) none of them
<gadget id="calculator">16 * 7</gadget>
<output>112</output>

<gadget id="calculator">16 * 14</gadget>
<output>224</output>

<gadget id="calculator">14 * 7</gadget>
<output>98</output>

<gadget id="calculator">224 + 98</gadget>
<output>322</output>

<gadget id="calculator">112 + 322</gadget>
<output>434</output>

<gadget id="calculator">434 * 2</gadget>
<output>868</output>

<result>D</result>
find the volume and surface area of a cuboid 16 m long, 14 m broad and 7 m high.
multiply(add(multiply(16, 7), add(multiply(16, 14), multiply(14, 7))), const_2)
volume = ( 16 x 14 x 7 ) m ^ 3 = 1568 m ^ 3 . surface area = [ 2 ( 16 x 14 + 14 x 7 + 16 x 7 ) ] cm ^ 2 = ( 2 x 434 ) cm ^ 2 = 868 cm ^ 2 . answer is d