A tin box of length 9 metres, breadth 2 metres and height 50 cm is made
without a lid. Find the total area of its faces.
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Answer:
Length of box L = 9 m
Breadth of box B = 2 m
Height of box H = 50 Cm = 0.5 m
total area = 2 (LB + BH + LH) - L * B
= 2 (9*2 + 2*0.5 + 9*0.5) - 9 * 2
= 2 (18 + 1 + 4.5) - 18
= 2 ( 23.5 ) - 18
= 47 - 18
= 29 m^2
Step-by-step explanation:
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