If a top of a ladder touches a house 10.68m above the ground, how far from the house should the bottom of the ladder be placed for it to be safe?

Question

using the 1 in 4 rule.

Answer 1

The 4 to 1 rule says: For every 4 feet of height move the base 1 foot away from the wall.

 

Let h be the height

Let b be the distance from the wall at the base

 

Then the rule is  h:b=4:1

 

In other words, the distance at the base should be 1/4 of the height.