A roofer is using a ladder to work on a house. He places the ladder against the side of the house. The ladder makes a right triangle
with the house and the ground. When repositioning the ladder, the roofer wants to keep the triangle the same, because he finds the
incline of the ladder the easiest to climb.
Select all the statements that could contribute to ensuring that the same triangle is always formed between the ladder, the ground,
and the house
He needs to ensure that the length of the ladder is appropriate to reach the top.
The angle that the ladder makes on the ground must always be the same.
He needs to ensure that the ladder is at the same distance from the side of the house.
He needs to ensure that the height of the roof is the same at all places.
The top of the ladder must touch the house at the same height