The length of box 12 Cm long, 8 Cm breadth and 9Cm height. Find the length of pencil in that box? Choose the correct choice from the following
A) 19	B) 14	C) 17	D) 16	E) 13
Diagonal (d) = √l(power2)+b(power2)+h(power2)   = √12(power2)+8(power2)+9(power2)   = √144+64+81= 
<gadget id="calculator">144+64+81</gadget>
<output>289</output>
√289=&gt; 17 17m   Answer is 17.
<result>C</result>
The length of box 12 Cm long, 8 Cm breadth and 9Cm height. Find the length of pencil in that box?