[tex]\huge \bf༆ Answer ༄[/tex]
Here's the solution ~
- 0.5 ft = 12 × 0.5 = 6 inches
- 1.5 ft = 0.5 × 3 ft = 6 × 3 = 18 inches
Surface are of cuboid is : -
- [tex] \sf2(lb + bh + lh)[/tex]
- [tex]2(4 \times 6) +( 6 \times 18) + (4 \times 18)[/tex]
- [tex] \sf2[24 + 108 + 72][/tex]
- [tex] \sf408 \: \: inches {}^{2} [/tex]