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A wire extends from the top of a building to the ground 90 feet away from the building. The wire creates an angle of elevation of 22 and ordm with the ground. How long is the wire Round to the nearest?
Length of line: 90/cos(22) = 97 feet rounded to nearest the foot
Do 90 degree angles occur in nature?
Yes. Salt grains can be cubes. Trees will also come out of the ground at 90 degree angles frequently.
A firefighter places a ladder against a building The ladder forms a 47 angle with the ground What is the measure of the angle between the ladder and the building?
43 degresses
Is a railroad crossing a real-world example of two planes intersecting?
Not really. A railroad intersection would be an example of two lines intersecting. An example of two planes intersecting would be the ground and the side of a building or the ground and the railroad crossing sign post.
How far is the base of a ladder that is 25 feet long leaning on a building 24 feet above the ground?
Using Pythagoras' theorem the length of the base is 7 feet
A 2.3m tent pole is supported by a 2.7 m rope anchored in the ground some distance from the foot of the pole What is the angle between the ground and the rope to the nearest degree?
sin-1 (2.3/2.7) = 58 degrees to the nearest degree
A ladder that leans against a building makes an angle of 49 degree with the ground and reaches a point on the building 12m above the ground Find the length of the ladder to the nearest meter?
The ladder forms a right angle with the building: the ground and the building forming the right angle and the ladder forming the hypotenuse. If the length of the ladder is L metres, then sin(49) = 12/L So L = 12/sin(49) = 15.9 = 16 metres.
A wire extends from the top of a building to the ground 90 feet away from the building. The wire creates an angle of elevation of 22 and ordm with the ground. How long is the wire Round to the nearest?
Length of line: 90/cos(22) = 97 feet rounded to nearest the foot
A car takes passengers from the ground to the top of a roller coaster that is 48 feet high. It covers a ground distance of 65 feet.What is the angle of elevation Round to the nearest degree?
36
Why building foundation have large horizontal area of contact with the ground?
this is because when the area of contact between the ground and the building increases the pressure exerted by the building will be less for the same force.
What should you do if a tornado forms and your in a car?
drive opposite of a tornadogo to the nearest building or house with or a cellar and sometimes the ditch but be caution on debris falling on you so its not really a good idea to hide in a ditchgo to lower ground
When a painter leans a 20 foot ladder against a building the base of the ladder is 12 feet from the building to the nearest foot how high on the building does the ladder go?
32
In the event of a fire what are the correct steps to take?
In the event of a fire, immediately activate the nearest fire alarm and alert others in the vicinity. Evacuate the building quickly, using the nearest safe exit, and avoid using elevators. If smoke is present, stay low to the ground and cover your mouth with a cloth. Once outside, call emergency services and do not re-enter the building until it is declared safe by authorities.
How can the type of ground beneath a building affect the building's response to seismic?
It can affect the strength, durability, or the sturdiness of the building. If the ground beneath it is sand, It is more than likely to fall during an earthquake or something. Sand is a horrible foundation for a building. Loose soil can also affect the building in the same way, making it slide or sink into the ground.
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
What is the height of a building when the angles of depression from the top of it towards a tower 100 meters high are 41 degrees and 52 degrees from top to bottom respectively on level ground?
By drawing a rough sketch from the given information and then by using trigonometry the height of the building works out as 312 meters rounded to the nearest meter.
What do you call the support of a building that is usually constructed below ground level?
The support of a building that's usually constructed below ground level is called a basement. Sometimes it is also the "Base" contruction of a building.
