Question

the total surface area of a cube is numerically equal to its volume, then what is the lateral surface area of the cube in sq units?

144
172
216
288
​

Answer 1

Answer:

144

Step-by-step explanation:

TSA=Vol.

6a^2=a^3

6=a^3/a^2

6=a

Therefore,

LSA=4a^2

4×6^2(putting value of a)

4×36

144

Answer 2

Answer:

TSA of cube = 6a^2

and given that it is equal to its volume

so,

6a^2 = a^3

a = 6 cm

lateral surface of cube = 4a^2 = 4 × 36 = 144 cm^2

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