20
115
18
15
27
70
he should bud the ladder so it wouldn't be able to reach
17
that depends on the hieght of the building.
30 feet. And you don't have to round it to the nearest foot. It's exactly 30 feet.
It depends if you want the ladder to overhang or to be set under but I would say 2 feet or 2/3 of a meter
115
18
20
15
27
To scale a building means to climb it by means of a ladder, or to reach the highest point. This term is often used in reference to attacking a castle - to "scale a castle wall" when attacking.
A ladder should be safe if it is properly constructed and maintained. Both single and extension ladders should be equipped with nonskid safety feet and should be placed on a firm, level surface.