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Question
Find the total surface area of a closed cardboard box of length 0.5 m ,breadth 25cm and height 15cm
Find the total surface area of a closed cardboard box of length 0.5 m ,breadth 25cm and height 15cm
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Solution
Length l of cardboard box = 0.5 m = 50 cm
Breadth b of cardboard box = 25 cm
Height h of cardboard box= 15 cm
Total surface area of cardboard box
=> 2 ( lb + bh + hl)
=> 2 ( 50 × 25 + 25 × 15 + 15 × 50 )
=> 2 ( 1250 + 375 + 750 )
=> 2 ( 2375 )
=> 4750 cm²
Breadth b of cardboard box = 25 cm
Height h of cardboard box= 15 cm
Total surface area of cardboard box
=> 2 ( lb + bh + hl)
=> 2 ( 50 × 25 + 25 × 15 + 15 × 50 )
=> 2 ( 1250 + 375 + 750 )
=> 2 ( 2375 )
=> 4750 cm²
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