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The word trapezium contains four syllables.
There are four quadrants. They are represented by Roman numerals : I(one), II(two), III(three), IV(four). The first quadrant contains all positive points , (+x, +y) The second quadrant contains negative x's and positive y's , (-x, +y) The third quadrant is all negative , (-x, -y) The fourth quadrant has negative y's and positive x's , (+x, -y)
Well, let's think about it like a happy little tree. The word "trim" actually has a short vowel sound in it, just like the sound you hear in "sit" or "cat." It's a gentle sound that adds a touch of coziness to our words. Just remember, every sound has its own special place in the language palette.
Scientific fields that make use of trigonometry include: acoustics, architecture, astronomy , cartography, civil engineering, geophysics, crystallography, electrical engineering, electronics, land surveying and geodesy, many physical sciences, mechanical engineering, machining, medical imaging , number theory, oceanography, optics, pharmacology, probability theory, seismology, statistics, and visual perception. Various types of equations can be solved using trigonometry. For example, a linear difference equation or differential equation with constant coefficients has solutions expressed in terms of the eigenvalues of its characteristic equation; if some of the eigenvalues are complex, the complex terms can be replaced by trigonometric functions of real terms, showing that the dynamic variable exhibits oscillations. Similarly, cubic equations with three real solutions have an algebraic solution that is unhelpful in that it contains cube roots of complex numbers; again an alternative solution exists in terms of trigonometric functions of real terms.
To find exact values, you should use the unit circle.It is good practice, too, to use radians as this is much more helpful in higher levels of math, so, do yourself a favor and learn how to convert degrees into radians and start thinking about the circle in radians instead of degrees.315 degrees = (7 [Pi])/4 radiansYou can use the following conversion to find this: 90 degrees = Pi / 2 radians.315 / 90 = x / (Pi / 2), solve for x.Although you can find decimal approximations using a calculator, it is better to find these on the unit circle and start building your knowledge about radians and how they related to each other and the circle. You will soon find out that most of the time you are dealing with a 3, 4, 5 or right triangle.Turns out that here we are looking at the right triangle in the 4th quadrant of the unit circle. All angles in the 4th quadrant share certain principles. x is positive and y is negative in the 4th quadrant. This means that cos is going to be positive and sin and tan are going to be negative. All right triangles also have similar properties, their sin and cos are going to be equal or differ only by their sign and will be either Sqrt(2)/2 or -Sqrt(2)/2.Building this intuitive knowledge about the unit circle and the angles it contains will serve you much better than getting decimal approximations.sin( (7 [Pi])/4 ) = -1/Sqrt(2) = -Sqrt(2)/2cos( (7 [Pi])/4 ) = 1/Sqrt(2) = Sqrt(2)/2To find tangent, you need to do a little arithmetic. We know that tan(x) = sin(x) / cos(x), so,tan( (7 [Pi])/4 ) = sin( (7 [Pi])/4 ) / cos( (7 [Pi])/4 ) = (-Sqrt(2)/2)/(Sqrt(2)/2) = -1You can also remember that this is a right triangle and tangent is also going to be 1 or -1 depending on the quadrant.The cossec, sec and cot values are the reciprocals of these values:cossec( (7 [Pi])/4 ) = 1/sin( (7 [Pi])/4 ) = 1/(-Sqrt(2)/2) = -Sqrt(2)sec( (7 [Pi])/4 ) = 1/cos( (7 [Pi])/4 ) = 1/(Sqrt(2)/2) = Sqrt(2)cot( (7 [Pi])/4 ) = 1/tan( (7 [Pi])/4 ) = cos( (7 [Pi])/4 ) / sin( (7 [Pi])/4 ) = -1
An octogon contains 6 equilateral triangles.
It contains 36 triangles
It has 16 sides and contains 14 triangles
seven There are five triangles in a heptagon. In ay convex polygon the triangles are two less than the sides. So a heptagon which has 7 sides, contains 5 triangles. There are five triangles in a heptagon. In ay convex polygon the triangles are two less than the sides. So a heptagon which has 7 sides, contains 5 triangles.
A 7 sided heptagon contains 5 triangles.
A 30 sided polygon contains 28 triangles.
There are six triangles in an octagon. In any convex polygon, there are two less triangles than the number of sides. So a octagon which has 8 sides, contains 6 triangles.
It contains 5 triangles
Eiffel Tower contains geometric shapes such as squares and vertical triangles.
Eiffel Tower contains geometric shapes such as squares and vertical triangles.
Eiffel Tower contains geometric shapes such as squares and vertical triangles.
A trapezoid contains three triangles, or more depending on how you divide it. Where its longer parallel side is at the bottom, two triangles point up and one points down.