Trigonometry

a corner in maths is called vertices

No, it does not.

Well, there really are no leaders in Twelve Angry Men, but those with more 'input' would include Juror #1 (Martin Balsam) the Foreman and Juror #8 (Henry Fonda) who pushes for fellow jury members to consider the possibility the Defendant may not be guilty of the crime.

Amongst the lay public of non-mathematicians and non-scientists, trigonometry is known chiefly for its application to measurement problems, yet is also often used in ways that are far more subtle, such as its place in the theory of music; still other uses are more technical, such as in number theory. The mathematical topics of Fourier series and Fourier transformsrely heavily on knowledge of trigonometric functions and find application in a number of areas, including statistics.

If tan A = 1/2, then sin A = ?

We use the Pythagorean identity 1 + cot2 A = csc2 A to find csc A, and then the reciprocal identity sin A = 1/csc A to find sin A.

tan A = 1/2 (since tan A is positive, A is in the first or the third quadrant)

cot A = 1/tan A = 1/(1/2) = 2

1 + cot2 A = csc2 A

1 + (2)2 = csc2 A

5 = csc2 A

√5 = csc A (when A is in the first quadrant)

1/√5 = sin A

√5/5 = sin A

If A is in the third quadrant, then sin A = -√5/5.

The geometric term for the number of square units needed to cover a surface is called the area of said surface.

A parabola is a single curve: it does not have separate parts.

Placing a question mark at the end of a phrase does not make it a sensible question. Try to use a whole sentence to describe what it is that you want answered.

The law of sines states the in a triangle with sides of length a, b, and c, and angles of A, B, and C where each angle's letter corresponds with the side opposite it, that Sin(A)/a = Sin(B)/b = Sin(C)/c. The law of cosines states that for the same triangle, c2 = a2 + b2 -2abCos(C).

A plane is a flat surface with no thickness. Our world has three dimensions, but there are only two dimensions on a plane.

Here are three:

If you have the area - radius = sqrt( A/Pi )

If you have the diameter - radius = D/2

If you have the circumference - radius = (C/(2Pi))

a yield sign

3060 degrees is eight and a half revolutions.

So the sine of 3060 degrees is the same as the sine of 180 degrees (half a revolution)

sin 180 = 0

Because he was dunb

He defined the spherical triangle

A rectangular pyramid is a solid (3-dimensional) figure that comes to a point opposite the base (like the Pyramids of Egypt.) Its base is a four-sided plane figure with right angles and opposite sides equal (a rectangle--or square for that matter).

I like geometry. It gives me pleasure in my life. how about you.

tae!

It's roughly one half of the acceleration of gravity on earth.

The angular velocity of a pulley turning 1800 rpm is 60 pi radians per second.

It is 0.

You can either go to a tanning bed, get a spray tan, or lay out in sun and tan. All except for spray tans can lead to severely increased chances of skin cancer, however.

trigonometric tables can be be used for this purpose. but to calculate the values without any external help, one can use the traditional method of derivation using different geometrical figures. for example the value of sine 600 can be calculated using an equilateral triangle. the ratio of altitude to half the length of side is (sq.root of 3)/2. but that is also sine600. but that is a tedious method of calculation. it is much easier to remember the rational or irrational values of standard angles like 300 450 600 750 900. the values of few other angles can be calculated from these using trigonometric identities and other formulae.