Question

2. A wooden box without lid has external length, breadth and height 11 cm, 9 cm and 7 cm respectively. If wood is 5 mm thick, find the volume of wood used in making the box.

Answer 1

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Answer 2

Answer:

189.5

Step-by-step explanation:

TSA WITHOUT TOP = 2(LB+HB+HL)-LB = 2(11*9+7*9+7*11)-11*9 = 2(99+63+77)-99 = 2*239-99 = 478-99 = 379 SQ. CM

WOOD VOLUME = 379*0.5 = 189.5 CUBIC CM