Safety rules indicate that a ladder placed against a building should never be further away from the building than 1/4 of the ladder length being used. Find the least angle, correct to 1 decimal place, between the ground and a ladder according to safety rules.
Safety rules indicate that a ladder placed against a building should never be further away from the building than 1/4 of the ladder length being used. Find the least angle, correct to 1 decimal place, between the ground and a ladder according to safety rules.
If we assume the length of the ladder=1
Then the distance to the wall from its base=1/4
Cos(x)=1/4, then
x=acos(1/4)=75.52 degrees-the angle between the ground and the ladder.
