X is the length of the ladder and the hypotenuse of a Pythagorean Triangle so:
x2 = (x - 18)2 + (x - 1)2 ie x2 - 36x + 324 + x2 - 2x + 1 which is 2x2 - 38x + 325
this is the same as x2 - 38x + 325 = 0 which factorises as (x - 13)(x - 25) so the ladder is either 13 or 25 feet long but it can't be 13 so the lengths are 25ft ladder, 7 feet from the building and 24 feet up the wall.
5 meters
It is not a proportion. There needs to be aroubd a 75 degree angle from the ground to the base. If it is too flat the ladder can slip out from underneath you. If it is too steep you can tip back. There is usually an angle at the bottom of the ladder if that is flat on the ground then that should be the safest angle (75 degrees)
15
18
4
A. 11 feet B. 13 C. 12 D. 14.
5 meters
5 meters
It is: 24 feet by using Pythagoras' theorem
That probably refers to the ratio between the length of the ladder, and the distance at which you place the bottom part of the ladder from the wall. If this distance is too short, you have the risk of the ladder falling backwards.
56
x^2=(x-4)^2+y^2 height up the wall = y = (x^2-(x-4)^2)^1/2 so if the length of the ladder is 10 feet Y= (100-36)^1/2 = 8
It is not a proportion. There needs to be aroubd a 75 degree angle from the ground to the base. If it is too flat the ladder can slip out from underneath you. If it is too steep you can tip back. There is usually an angle at the bottom of the ladder if that is flat on the ground then that should be the safest angle (75 degrees)
he should bud the ladder so it wouldn't be able to reach
Its pythagoras: 102 - 52 = vertical height2. So 100-25 = vertical height2. Then the square root of 75 must = vertical height. Which makes the top of the ladder 8.66 feet (8ft 8 inches) from the ground.
If you are asking, what's the distance (x) from the bottom of the ladder to the wall, then... x squared + 2 squared = 3 squared x squared + 4 = 9 x squared = 5 x = the square root of 5, or approx 2.24 m
No. since the ladder must be on an angle it must have room so that the length of the ladder is equal to the 282 + (distance between bottom of ladder and house)2.