- What is the value of cos 165 degree?
- What is the exact value of tan 105 degrees?
- What is the value of tan 15 degree?
- What is the value of Sin Cos Tan?
- At what angle is tan?
- What is tan in radians?
- How do I calculate an angle?
- How do you work out the angle of a straight line?
- What angle is a straight line called?
- Can an angle be 180 degrees?

## What is the value of cos 165 degree?

Explanation: Call cos 165 = cos t ->> cos 2t = cos 330 = cos (-30 + 360) = cos -30 = cos30=√32.

## What is the exact value of tan 105 degrees?

Complete step-by-step answer: By using specified tangent angle from the standard trigonometric ratios table i.e., tan60∘=√3, and tan450=1. Hence, the exact functional value of tan(105∘)=√3+11−√3.

## What is the value of tan 15 degree?

0.26794919243

## What is the value of Sin Cos Tan?

Values of Trigonometric Ratios at Various Angles:

Angles (in degrees) | 0° | 60° |
---|---|---|

Sin θ | 0 | √3/2 |

Cos θ | 1 | 1/2 |

Tan θ | 0 | √3 |

Cot θ | ∞ | 1/√3 |

## At what angle is tan?

Tangent table

x | tan(x) | |
---|---|---|

degrees | radians | |

45° | π/4 | 1 |

60° | π/3 | 1.732050808 |

90° | π/2 | not defined |

## What is tan in radians?

The Tan function calculates the tangent of an angle (in a right triangle the side opposite an angle divided by the side adjacent the angle). In the diagram below, the tangent of X is given by the ratio b/a. The units of X are assumed to be radians. If X is in degrees, multiply it by Pi/180 to convert it to radians.

## How do I calculate an angle?

Example

- Step 1 The two sides we know are Adjacent (6,750) and Hypotenuse (8,100).
- Step 2 SOHCAHTOA tells us we must use Cosine.
- Step 3 Calculate Adjacent / Hypotenuse = 6,750/8,100 = 0.8333.
- Step 4 Find the angle from your calculator using cos-1 of 0.8333:

## How do you work out the angle of a straight line?

The angles on a straight line add up to 180 degrees. So x + y = 180. Therefore y = 180 – x. Putting this into the first equation gives us: a + b + 180 – x = 180.

## What angle is a straight line called?

flat angle

## Can an angle be 180 degrees?

Types of angles: Angles between 0 and 90 degrees (0°< θ <90°) are called acute angles. Angles between 90 and 180 degrees (90°< θ <180°) are known as obtuse angles. Angles that are 180 degrees (θ = 180°) are known as straight angles.