Question

find total surface area and lateral surface area of the cube whose side is 1) 8m 2) 21 cm 3) 7.5 cm​

Answer 1

Answer:

$i) \: \: \: \: \: \: \: \: tsa = 384 \: {m}^{2} \\ lsa = 256 \: {m}^{2}$

$ii) \: \: \: \: \: \: \: tsa = 2646 \: {cm}^{2} \: \: \: \: \: lsa = 1764 \: {cm}^{2}$

$iii) \: \: \: \: \: \: \: tsa = 337.5 \: {cm}^{2} \: \: \: \: \: \: lsa = 225 \: {cm}^{2} .$