please help im so confused!!

This figure represents a model ramp that is being covered with nonslip material on all sides.

How much nonslip material is needed to cover the ramp?


216 in²

240 in²

264 in²

278 in²

please help im so confused This figure represents a model ramp that is being covered with nonslip material on all sides How much nonslip material is needed to c class=