Question

Find the total surface area for the following.
height-3m, length-300 cm and width- 2 cm.​

Answer 1

182400 cm²

Explanation:

At = 2( l×w + l×h + h×w)

= 2(300cm×2cm + 300cm×300cm + 300cm×2cm)

= 2(600cm² + 90000cm² + 600cm²)

= 2×91200cm²

= 182400 cm²

Answer 2

Explanation:

So the Dimensions are:

Height: 300cm

Length: 300cm

Width: 2cm

SA = 2(H*L)+2(H*W)+2(L*W)

= 180000 + 1200 + 1200

= 182400
`cm^(2)` OR 18.24
`m^(2)`