Question

The total surface area of a cubical chocolate box is 150 cm², find its lateral surface area ​

Answer 1

Answer:

100cm

Step-by-step explanation:

tsa=150cm²

6l²=150cm²

l²=150/6

l²=25

l=5

side=5cm

LSA=4l²

4×5²

4×25

=100cm

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Answer 2

Step-by-step explanation:

total surface are = 150cm

$6 {x}^{2} = 150 \\ {x}^{2} = 150 \div 6 \\ {x}^{2} = 25 \\ x = \sqrt{25 } \\ x = 5$

lateral surface area

$4 \times {5}^{2} \\ 4 \times 25 \\ 100$