A tangent to a circle is a straight line which touches the circle at only one point. This point is called **the point of tangency**.

Contents

- 1 What does tangent mean?
- 2 How do you find tangent in geometry?
- 3 What is tangent in simple words?
- 4 What is tan equal to in geometry?
- 5 What is a tangent example?
- 6 What is a tangent in physics?
- 7 Why is Tan called tangent?
- 8 How do you calculate a tangent?
- 9 What is tangent rule?
- 10 What is tangent in technical drawing?
- 11 What is a tangent line on a graph?
- 12 Which angle is tangent?

## What does tangent mean?

In geometry, a tangent is a straight line that touches a curve at a single point. So we say that someone who starts talking about one thing and gets sidetracked has gone off on a tangent.

## How do you find tangent in geometry?

In any right triangle, the tangent of an angle is the length of the opposite side (O) divided by the length of the adjacent side (A). In a formula, it is written simply as ‘tan’.

## What is tangent in simple words?

(Entry 1 of 2) 1: an abrupt change of course: digression the speaker went off on a tangent. 2a: the trigonometric function that for an acute angle is the ratio between the leg opposite to the angle when it is considered part of a right triangle and the leg adjacent.

## What is tan equal to in geometry?

In a right angled triangle, the tangent of an angle is: The length of the side opposite the angle divided by the length of the adjacent side. The abbreviation is tan. tan(θ) = opposite / adjacent.

## What is a tangent example?

The tangent of an angle is the trigonometric ratio between the adjacent side and the opposite side of a right triangle containing that angle. Example: In the triangle shown, tan(A)=68 or 34 and tan(B)=86 or 43.

## What is a tangent in physics?

Physics. a straight line touching a curve at a single point without crossing it at that point.

## Why is Tan called tangent?

In geometry, the tangent line (or simply tangent) to a plane curve at a given point is the straight line that “just touches” the curve at that point. Leibniz defined it as the line through a pair of infinitely close points on the curve. The word ” tangent” comes from the Latin tangere, “to touch”.

## How do you calculate a tangent?

In order to find the equation of a tangent, we:

- Differentiate the equation of the curve.
- Substitute the value into the differentiated equation to find the gradient.
- Substitute the value into the original equation of the curve to find the y-coordinate.
- Substitute your point on the line and the gradient into.

## What is tangent rule?

The tangent rule states that the ratio of difference and sum of any two sides of a triangle is equal to the ratio of the tangent of half the difference and tangent of sum of the angles opposite to these sides.

## What is tangent in technical drawing?

A tangent is a line in the plane of a circle that intersects (passes through) the surface of a circle. The point where the line passes through the surface of the circle is called the “point of tangency”. The line is called the “tangent line” but is referred to mainly as the “tangent”.

## What is a tangent line on a graph?

Recall: • A Tangent Line is a line which locally touches a curve at one and only one point. • The slope-intercept formula for a line is y = mx + b, where m is the slope of the line and b is the y-intercept.

## Which angle is tangent?

The tangent of an angle is the ratio of the side opposite the angle over the side adjacent to the angle.