find tsa and lsa of cube 21 cm
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if side of cube = 21 cm
then
tsa = 6a^2 = 6 × 21^2
lsa = 4a^2 = 4 × 21^2
then
tsa = 6a^2 = 6 × 21^2
lsa = 4a^2 = 4 × 21^2
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