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A building with height D feet has a shadow with G feet as its length. What is the height of a neighboring building with a shadow of C feet?
Sameet
D/G = x/C The x is the height of the neighboring building. Just cross-multiply, then divide.
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∙ 15y ago
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What will be the shadow length at 4 pm?
The answer depends on: the height of the item casting the shadow, the location on earth, the time of year, and the inclination of the surface on which the shadow is cast.
If a 5 ft post cast a shadow of 1.2 ft find the length of the shadow for a 17 ft post?
The length of the shadow is proportional to the height of the post. Thus, if l is the length of the unknown shadow, l/17 = 1.2/5 or l = 4.1 feet. This should be rounded to 4 if the value 5 is not considered to be known to at least two significant digits.
A 3 foot pole casts a 6 foot shadow A 4 foot pole casts an 8 foot shadow Use a linear equation to predict the length of a shadow cast by a 6 foot pole?
Shadow lengths are proportional to the heights of objects casting the shadows. Therefore, calling the shadow length l, the height h, and the proportionality constant k, l = kh. (The intercept is 0 because an object with no height casts no shadow.) Therefore, in this instance k = l/h = 6/3 or 8/4 = 2. then l(6) = 2 X 6 = 12 feet.
On a sunny day if a 36inch yardstick casts a 21inch shadow how tall is a building whose shadow is 168ft?
So, I can't give you the answer with the appropriate formulas or w/e but this is how I figure it out in my headFind the ratio between the yard stick and it's shadow36/21 = 1.71This means that object creating the shadow is 171% taller that its shadow is longFind the amount of inches in 168 feet (this is to be more accurate with your answer)168 * 12 = 2016 inchesMultiply the previous number by the ratio found before2016 * 1.71 = 3447.4 inches (or 287.3 feet)If a 36 inch yardstick casts a 21 inch shadow, a building whose shadow is 168 feet is 287.3 feet talls'howyagottadoitboyyiieAnother answer:Using trigonometry will give you a more accurate answerTangent ratio = opposite (the yardstick) divided by the adjacent (yardstick's shadow)Tangent ratio = 36/21 = 12/7 in its lowest termsNow rearrange the formula to find the height of the buildingTangent ratio*adjacent (the building's shadow) = opposite (the building)12/7*168 = 288The height of the building is 288 feet.
If the shadow of a tree is 7 m long and the shadow of a person who is 0.9 m tall is 2 m long how tall is the tree?
The length of the shadow at any moment is proportional to the height of the object casting the shadow. call the unknown height of the tree h, then, h/7 = 0.9/2, or h = 7(0.9)/2 = 3 m, to the justified number of siginifcant digits, or 3.15 m if the single digit numbers given are all considered to be exact.
How tall is a building with a 73 ft shadow when elevation of the sun is 31 degrees?
(Height of the building)/(length of the shadow) = tangent of 31° .Height = 73 tan(31°) = 43.9 feet (rounded)
How can you calculate height of a pyramid by measuring the length of its shadow?
By means of trigonometry if you know the angle of elevation or by comparing it with a nearby object if you know its height and shadow length.
What is the height of a building that cast a 105' shadow when a 6' man casts a 14' shadow?
Height of building/105 = 6/14 Multiply both sides by 105: Height = 630/14 Height = 45 feet
Measure the height of building 6 ft pole in shadow of building and covers shadow of building distance between pole and building 182ft pole cast shadow of 5.25ft how tall is building?
208 ft pole
How does the length of a shadow change during the yearwhy does this happen?
The length of the shadow (on a flat, horizontal floor) depends on the height of the Sun. If the Sun is higher in the sky, the shadow will become shorter.
If your building casts a 280 ft shadow how tall is the building?
That varies depending on the height of the sun, whether the shadow is cast on a sloping surface and so forth.
What tool do you use to measure the height of a school?
(1) One way would be to have a stick, stuck vertically into the ground. Measure the length of the shadow and the length of the stick. The actual height of the stick will be a ratio of the shadow's length. Then measure the length of the school's shadow. The height of the school in comparison with its shadow length will be same ratio as the height of the stick compared to its shadow length. You could use a tape measure for this. And possibly a calculator, which will make the calculation easier than doing it by long arithmetic or mental arithmetic. (2) Another way would be to use something that can tell you, from a short distance away from the school, the angle between the top of the school and the ground. A sextant can do this. It is more accurate than using a protractor. Using trigonometry and the distance from the building to where you are standing, you will be able to calculate the height of the school, because it will be at right angles to the line from you to the school. If you don't know trigonometry, method (1) will be easier.
How do you measure wood size?
By its shadow :) Then I measure mine shadow, or shadow of any object I know how high is.. and use proportion: HW/MH=WS/MS or HW=MH x WS/MS HW=wood height MH=mine height WS=length of wood shadow MS=length of mine shadow
What will be the shadow length at 4 pm?
The answer depends on: the height of the item casting the shadow, the location on earth, the time of year, and the inclination of the surface on which the shadow is cast.
I have no idea how to go about this question on my geometry homework! Can someone help me?
The two triangles shown are similar triangles. Numerically, the ratio computed by dividing the length of any side of tower triangle by the length of the corresponding side of the walking stick (similar) triangle will be the same value. Therefore, when the length of the tower shadow is divided by the length of the walking stick shadow, that ratio will be the exactly same as the tower height divided by the walking stick height. (length of tower shadow)/(length of walking stick shadow) = (tower's height)/(walking stick height) tower's height = {(length of tower shadow)/(length of walking stick shadow)}*(walking stick height)
How can you find the height of tree?
Using trigonometery if you know the length of its shadow and angle of elevation
What would the length of shadow cast by a pole be if the incident rays of the sun were direct?
I am not sure what you mean by "direct" - light tends to travel in a straight line. The length of the shadow depends on the length of the pole, and of the height of the Sun.
