Answer:
2784 inches
Step-by-step explanation:
The amount of materials needed is the product of the number of rungs with the amount of materials required for one rung.
The amount of material required for one rung is the perimeter of the rung.
Perimeter of rung
= 2(18 + 30)
= 96 inches
Amount of material needed for the ladder
= 96 * 29
= 2784 inches
