In reality, however, the long-term mental health state of many cardiac arrest survivors is not typically considered or assessed, the researchers write in their report, which appears in the journal Resuscitation.
What is the difference between Chord, Tangent and Secant? â¢ A chord is a line segment and both secant and tangents are straight lines. â¢ 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. â¢ A tangent is a line that just touches and passes through a point on a curve. It is a special case of secant where the two points on the curve overlap.
1 The angle between a tangent and chord is equal to one half the angle subtended at the centre of the circle, on the opposite side of the chord (Tangent Chord Angle).  If the angle subtended by the chord at the centre is 90 degrees then l = r â2, where l is the length of the chord and r is the radius of the circle.