A cubical box has each edgs ,10, cm another box is 12.5Cm long 10 cm wide and 8 cm high
(i) which box has tje greater lateral surface area and by how much ?
(ii) which box has the smaller total surface area and by how much?
jaffer269:
send me the maths answer of that q
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Lateral surface area of cube is Area of the four sides excluding the top and base
Formula = 4a²
where a = side
Side = 10cm
Therefore,
LSA of Cubical box = 4×10²
= 4 × 100
= 400cm²
Lateral surface area of cuboid = 2h( l + b)
l = 12.5 cm,b = 10cm, h = 8 cm
Therefore,
2(8)[12.5 + 10]
16(22.5)
=> 172.5cm²
Therefore,
Area of cubical box is greater than cuboidal box by - 400 - 172.5
=> 227.5cm²
Hope it helps!
Lateral surface area of cube is Area of the four sides excluding the top and base
Formula = 4a²
where a = side
Side = 10cm
Therefore,
LSA of Cubical box = 4×10²
= 4 × 100
= 400cm²
Lateral surface area of cuboid = 2h( l + b)
l = 12.5 cm,b = 10cm, h = 8 cm
Therefore,
2(8)[12.5 + 10]
16(22.5)
=> 172.5cm²
Therefore,
Area of cubical box is greater than cuboidal box by - 400 - 172.5
=> 227.5cm²
Hope it helps!
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