A point P is 8cm from the centre of a circle of radius length 5cm. Find the length of the major arc between the points of contact of the tangents drawn from P to the circle.
Thanks in advance.
the arc length equal the radius multiply with the arc angle in radian
so we need to find the angle between the side 8 and the side 5, there is a theorem that said the the line joined from the center to any tangent point is orthogonal to the tangent line from that point
so the angle equal
A is the angle between the sides 8,5