Question

Find the lateral surface area and the total surface area of a cube each of whose edges measures (a) 8dm5cm

Answer 1

Cube (Edge = 8 dm)

LSA of cube = 4a^2 = 4×8^2 = 256 dm^2

TSA of cube = 6a^2 = 6×8^2 = 384 dm^2

Cube (Edge = 5 cm)

LSA of cube = 4a^2 = 4×5^2 = 100 cm^2

TSA of cube = 6a^2 = 6×5^2 = 150 cm^2