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A ladder of 2.8 meters is leaning up against a wall it is 1.3 meters away from the wall how high will the ladder reach up the wall?
Wiki User
∙ 15y ago
This question is where you use the Pythagorean Theorem. Go to http://en.wikipdedia.org/ and search for Pythagorean Theoremif you don't already remember what it is, and good luck.
Wiki User
∙ 15y ago
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A 15 metre long ladder is placed against a wall in such a way from the wall up to what height does the ladder reach the wall?
15 meters, or less, depending on the angle.
5m ladder leans against a house it is 3 m from the base of the wall how high does that ladder reach?
8
How far up a wall will a 12m ladder reach If the foot of the ladder must be 4m from the base of the wall?
16
Would there be a situation when you would estimate a difference?
Yes, there would. For example, how high a ladder do you need to reach the roof? Answer is the difference between the roof height and your reach.
If a painter has a ladder 20 feet long .How high will the ladder reach if he set the base 2 feet from the building?
19.8997487421324 ft This 19 ft and around 10.8 inches. You need to use the following rule about right angled triangles, that the sum of the squares of the two shorter sides is equal to the square of the hypotenuse (the long side) In this example, the hypotenuse is the ladder itself, resting at an angle against the wall. So the square of the ladder length is 400 You know that the base of the triangle is the distance from the wall (2 feet) which squared is 4. Subtract 4 from 400 and you get 396. The square root of this is 19.9 feet or 19 feet and 10.8 inches. However, note that a ladder should normally be placed at an angle of around 15 degrees from the vertical. A two foot base is too steep for safe use. See the discussion for more on this. You calculate this using the following formula:
A 10-foot ladder is leaning against a tree The bottom of the ladder is 4 feet away from the bottom of the tree About how high up the tree does the top of the ladder reach?
9.2
How do ladders work?
The main purpose of a ladder is to allow people to get higher than they can reach. A ladder works by leaning it up against a solid surface and then the person climbs the ladder using the rungs.
A ladder 10 ft long leaning against a wall at a 71 angle how high up the wall does the ladder reach?
10 sin71 = 10 x 0.9455 = 9.455 feet (just under 9' 5½")
A 40 foot ladder is placed against a building the ladder forms a 75 degree angle with the ground How high up the building does the ladder reach?
115
A 15 metre long ladder is placed against a wall in such a way from the wall up to what height does the ladder reach the wall?
15 meters, or less, depending on the angle.
A 5 m ladder leans against a house it is 3 m from the base of the wall how high does the ladder reach?
8
A 30 foot ladder leaning against the side of a house makes a 70 degrees 5' angle with the ground how far up the side of the house does the ladder reach?
Round the base angle to 70 degrees and use the sine ratio: 30*sine 70 degrees = 28.19077862 feet Height of ladder from the ground = 28 feet to 2 s.f.
How long must a ladder be to reach the top of a 20 ft wall if the ladder and the wall form a 32 degree angle?
A ladder leaning against a 20ft wall, with an angle of 32 degrees with respect to the wall, must be 24ft long. cos(theta) = adjacent over hypotenuse cos(32) = 20 / hypotenuse hypotenuse = 20 / cos(32) hypotenuse = 23.58
Ken leans a 12-foot ladder against his house He places the ladder so that the base is 5 feet from the house How far up the house does the ladder reach?
10.9 [11]
5m ladder leans against a house it is 3 m from the base of the wall how high does that ladder reach?
8
If A painter leans a 34ft ladder against a building The base of the ladder is 16ft from the building To the nearest foot how high on the building does the ladder reach?
30 feet. And you don't have to round it to the nearest foot. It's exactly 30 feet.
A ladder 15ft long leans against a wall the top of the ladder reaches a height that is 3 ft more than twice the distance from the base of the ladder to the wallhow high up the does this ladder reach?
18
