the LSA of a cube is 324 cm2. find its volume and TSA
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LSA of cube = 4a^2
324 = 4a^2
a^2 = 81
a = 9 cm.
Therefore, TSA of cube = 6 a^2
TSA = 6 ☓ 9 ☓ 9 cm ^2
TSA = 486 cm^2
Volume of cube = side ^3
Volume = 9 ^3
Volume = 721 cm^3.
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1
Lateral surface area of cube = 4 a^2
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