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Trigonometry

Trigonometry is a field of mathematics. It is the study of triangles. Trigonometry includes planar trigonometry, spherical trigonometry, finding unknown values in triangles, trigonometric functions, and trigonometric function graphs.

3,810 Questions

What is pipefitting formula for 45 degree offset?

whatever the offset is times it by 1.414 and this will give you your travel then just take off the centres of the 45's and you have your cut length....for instance if the offset is 12 inchs you multiply it by 1.414 you come up with 16.968..meaning 1 foot 4 inchs 15/16 just thought alittle clarity might help if the person was new in trade.

How is trigonometry relevant to our everyday life?

Surveying is all trig. Much trig in physics and engineering,

What is a horizontal ray?

Ray which cross vertical line is called horizental ray....

as simply u can see the gray line is vertical of my text

What are the uses of carpentry in trigonometry?

Trignometry is used to calculate angles in length in carpentry.

Why does spherical trigonometry important?

The earth, which we live on, is approximately a sphere. It is important, therefore, to know spherical trigonometry.

Use the law of cosines to write an expression for a2?

c^2 = A^2 + b^2 - 2abcosx

rearranging would tell you that

A^2 = C^2 + 2abcosx - B^2

What are the classification of angle according to sides?

  • Cosine = adjacent/hypotenuse
  • Sine = opposite/hypotenuse
  • Tangent = opposite/adjacent
  • Secant = hypotenuse/adjacent
  • Cosecant = hypotenuse/opposite
  • Cotangent = adjacent/opposite

What are quadrants in trigonometry?

They are the quarters of a circle which are created by two straight lines intersecting at right angles at its centre.

What is the period of a 200 kHz sine wave?

Period = reciprocal of ('1' divided by) the frequency = 1/200,000 = 0.000005 second = 5 microseconds

What ratio relates the length of the leg opposite the angle in question to the length of the leg adjacent to the angle?

This ratio is the tangent of the angle.
If the triangle is a right angled triangle and the angle in question is not the right angle, then it is the tangent of the angle in question.

Where did the word September come from?

it comes from latin. Originally September was the seventh month of the roman calender. I don't know latin but the sept portion meant seven or seventh.

Application of density in your daily life?

I own a pickup truck. It is rated as a half ton truck for cargo. If oak firewood has a density of 50 lbs per cubic foot, what volume of firewood can I carry in my truck? Can I just pile it on to the top of the rails, or will I overload the truck?

Gravel has a density of 140 lbs per cubic foot. I need to fill in a drive way that is 120 feet long by 16 feet wide to a depth of 3 inches. How many cubic feet can I safely haul in my pickup? How many trips do I have to make to get all the gravel for the project?

Thales' contributions in trigonometry?

There is no Contribution of Thales in the field of trignometry.........

What is the shortest side of a triangle if its longest side is 162cm when 2 of its 3 angles are 48.4 degrees and 37.25 degrees?

Largest angle is: 180-37.25-48.4 = 94.35 degrees

Smallest angle is: 37.25 degrees

Shortest side is: 162*sin(37.25)/sin(94.35) = 98.34cm to two decimal places

Why is study of trigonometry important?

Math gets much better once you get past trigonometry into Calculus. You learn trig to help with many things later in life. (Believe me you will use it). Calculus can be used to describe ANYTHING, and is so powerful that you will be amazed when you learn it. Things that you thought you could never understand because they were too difficult suddenly you can. So just keep plugging away at trigonometry and I promise it will get better and they will be the most important things you learn in school.

When do we use trig functions?

Trigonometry functions are used to work out the various properties of triangles.