## How does the tangent length relate to the secant length?

Tangent and Secant Formula: If a secant and a tangent of a circle are drawn from a point outside the circle, then the product of the lengths of the secant and its external segment equals the square of the length of the tangent segment.

## Are Secants and chords the same?

A straight line that intersects a circle in two points is called a secant line. A chord is the line segment that joins two distinct points of the circle. A chord is in a unique secant line and every secant line defines a unique chord. In geometry, a secant is a line that cuts any curve in at least two different points.

**What is chord Tangent Secant?**

A chord is a line segment and both secant and tangents are straight lines. • Chord is a line segment with the end points lying on a curve while a secant is a line passing through exact two points on a curve. • A tangent is a line that just touches and passes through a point on a curve.

**How do you find secants?**

Calculate secant by finding the reciprocal of the cosine of an angle. For the cos A and cos B in Step 3, the reciprocals are 1/cos A and 1/cos B. So sec A = 1/cos A and sec B= 1/cos B. Express secant in terms of the sides of the right triangle by substituting cos A =b/c into the secant equation for A in Step 4.

### How are the tangent secant and chord of a circle related?

A line will meet a circle at no more than two points. We call a line a secant if it intersects twice, and a tangent if it intersects once (just touching at a single point). Chords are segments connecting two points on a circle, so chords become secants when extended.

### What is the relationship of a secant and tangent intersecting in the exterior of a circle to its intercepted arcs?

related to the intercepted arcs. If two secants, a secant and a tangent, or two tangents intersect in the exterior of a circle, then the measure of the angle formed is one half the difference of the measures of the intercepted arcs.

**Is secant the longest chord?**

A chord that passes through the center of a circle is called a diameter, and is the longest chord.

**Are Secants always tangents?**

Tangents to the outer circle won’t touch the inner circle at all, and tangents to the inner circle will always be secants of the outer one.

## Are secants always tangents?

## What is the difference between secant and tangent?

A line that intersects a circle in exactly one point is called a tangent and the point where the intersection occurs is called the point of tangency. The tangent is always perpendicular to the radius drawn to the point of tangency. A secant is a line that intersects a circle in exactly two points.