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It depends on what information you already have. For example, if you know the length of two sides of a triangle, you can easily find the tangent. Or, if you know the length of two angles and a side, you can find the other sides as well, using the tangent, cosine, and sine as needed.

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Q: How do you know when to use tangent cosine or sine?
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Related questions

Do you need a right traingle to use sine cosine and tangent?

Yes, sine, cosine, tangent definitions are based on right triangles


How do you know when to use sine over cosine or cosine over sine?

You can choose either or but tangent which is sin/cos seems to be the most common way.


What jobs use sine cosine and tangent?

Trigonometry


How do you find theta for right triangle?

You can use your trigonometric functions (sine, cosine, and tangent).


How do you solve for a triangle with two angles but no lengths?

you can use the sine, cosine, tangent formula.


How do you figure the base of a triangle when you know the dimension of the other two sides?

If it is a right triangle, you can use the Pythagorean Theorem. If you know the angle measures, you can use cosine/sine/tangent.


How do you use sine cosine and tangent?

They are used to find the angle or side measurement of a right triangle. For example, if 2 sides of a right triangle have known values and an angle has a known measurement, you can find the third side by using sine, cosine or tangent.


How do you work out the angles in a triangle with only 3 sides and no angles?

use the inverse sine or cosine or tangent


How do you make a degree into a decimal?

use tangent, sine, or cosine hope this helped,if it didnt message me on facebook tyler immortal barden


Where to use sine and cosine in physics?

Sine and cosine functions are used in physics to describe periodic phenomena, such as simple harmonic motion, sound waves, and alternating currents in circuits. They help in modeling phenomena that exhibit oscillatory behavior over time or space. Sine and cosine functions are also used in vector analysis to analyze the components of vectors in different directions.


I have a right angled triangle which i know all the angles of. I have the length of one side which is adjacent to the right angle. How can I work out the length of the hypotenuse and the other side?

Use tangent to find the other leg, and the sine or cosine to find the hypotenuse.


How do you find 2 missing sides of a right triangle?

Two methods to try . #1 Use pythagoras h^ = a^2 + a^2 NB THis is only good if you know that the two unknown sides are the same length. #2 Use trigonometry (trig.) This is good if you know the hypotenuse and one of the angles. Sine(angle) = opposite/ hypotenuse Hence opposite side = hypotenuse X sine(angle) Similarly Cosine(angle) = adjacent / hypotenuse. adjacent side = hypotenuse X Cosine(angle) Here is an example If you known the hypotenuse is a length of '6' and the angle is 30 degrees. Then opposite = 6 X Sin(30) opposite = 6 x 0.5 = 3 So the length of the oppisute sides is '3' units. NB DO NOT make the mistakes of saying Sin(6 X 30) = Sin(180) Nor 6 x 30 , nor Sin(6) X 30 , nor any other combination. You MUST find the SINE of the angle , then multiply it to the given length. Similarly for Cosine and Tangent.