0
What is the minimum length ladder that a worker needs to acces a landing nine feet about the adjacent floor?
Wiki User
∙ 7y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
If a sign is 35 ft tall and i place a ladder 10 ft from the bottom of the sign how long of a ladder will i nedd to reach 15 ft up the sign?
In effect you have the outline of aright-angled triangle with an adjacent side of 10 ft and an opposite side of 15 ft and you need to find the length of the hypotenuse (which will be the ladder). Use Pythagoras' theorem to find the length of the hypotenuse: adjacent2+opposite2 = hypotenuse2 102+152= 325 square feet The square root of 325 = 18.02775638 feet So the ladder needs to be at least 18 feet in length.
The base of a ladder is 7 feet away from the wall The top of the ladder is 19 feet from the floor Find the length of the ladder to the nearest thousandth?
Using Pythagoras' theorem the length of the ladder is 20.248 feet
Which type of ladder is a non self supporting has one section and has a fixed length which is determined by the length of the side of the rails?
step ladder
In a right triangle the of an angle is the length of the opposite side divided by the length of the adjacent side.?
Yes because tangent = opposite/adjacent
What ladder type offers the greatest length in general purpose ladders?
Extension Ladder
What is the minimum length ladder that a worker needs to access a landing nine feet above the adjacent floor?
12
A ladder leans against a wall making an angle of 73 degress with the ground The ladder's base is 1.17m away from the wall Determine the length of the ladder?
Providing that the ground is level and that the wall is straight, you have the outline of a right angled triangle with an adjacent angle of 73 degrees and an adjacent length of 1.17 metres. In order to find the length of the hypotenuse (which is the ladder itself) we use the cosine ratio: cosine = adjacent/hypotenuse Which when rearranged is: hypotenuse = adjacent/cosine hypotenuse = 1.17/cosine73 degrees = 4.001755235 So the length of the ladder is 4 metres correct to one significant figure.
How do you find the ratio of adjacent sides?
You divide the length of one adjacent side by the length of the other adjacent side.
In order to reach a roof that's located 24 feet above the ground the ladder used must extend to a height of at least?
Assuming it is a two section ladder then it must therefore have a minimum length of 28 feet.
If a sign is 35 ft tall and i place a ladder 10 ft from the bottom of the sign how long of a ladder will i nedd to reach 15 ft up the sign?
In effect you have the outline of aright-angled triangle with an adjacent side of 10 ft and an opposite side of 15 ft and you need to find the length of the hypotenuse (which will be the ladder). Use Pythagoras' theorem to find the length of the hypotenuse: adjacent2+opposite2 = hypotenuse2 102+152= 325 square feet The square root of 325 = 18.02775638 feet So the ladder needs to be at least 18 feet in length.
The base of a ladder is 7 feet away from the wall The top of the ladder is 19 feet from the floor Find the length of the ladder to the nearest thousandth?
Using Pythagoras' theorem the length of the ladder is 20.248 feet
The top of a ladder must extend how many feet above the surface a worker is climbing onto?
From the US OSHA Construction standards:1926.1053(b)(1)When portable ladders are used for access to an upper landing surface, the ladder side rails shall extend at least 3 feet (.9 m) above the upper landing surface to which the ladder is used to gain access; or, when such an extension is not possible because of the ladder's length, then the ladder shall be secured at its top to a rigid support that will not deflect, and a grasping device, such as a grabrail, shall be provided to assist employees in mounting and dismounting the ladder. In no case shall the extension be such that ladder deflection under a load would, by itself, cause the ladder to slip off its support.
What angle is the ratio of the opposite leg length to the adjacent leg length?
Its Tangent, APEX "The tangent of an angle is the ratio of the opposite leg length to the adjacent leg length."
If A ladder leaning against a wall makes a 60 angle with the ground the base of the ladder is 3 m from the building how high above the ground is the top of the ladder?
This answer uses trigonometry to avoid a lot of work:tangent = opposite/adjacent and tangent*adjacent (base of ladder from the building) = opposite (height of ladder above ground)So: tangent 60 degrees*3 = 5.196152423Therefore: Top of the ladder above ground = 5.2 meters correct to one decimal place.More laborious methodThe right triangle formed by the wall, ground and ladder has sides in the ratio of 1::2::sq-rt-of-3. The shortest side is the one opposite the 30 degree angle, i.e., the given distance from wall to base of the ladder--3 m.The length of the ladder represents the hypotenuse of the triangle, and is twice as long, hence 6 m.And the height of the ladder's top from the ground is proportional to the third side whose length is sq-rt-3 times that of the shortest side. Sq-rt-3 is about 1.732, so height of the ladder's top at the wall is about 5.20 m, or 520 cm.
Which type of ladder is a non self supporting has one section and has a fixed length which is determined by the length of the side of the rails?
step ladder
In a right triangle the of an angle is the length of the opposite side divided by the length of the adjacent side.?
Yes because tangent = opposite/adjacent
What ladder type offers the greatest length in general purpose ladders?
Extension Ladder
