Mathematics
PA and PB are tangents to a circle with center O. If angle BPA = 70°, the angle ACB is :
70°
105°
140°
55°
Related Questions
BC is a tangent to the circle with center O. OD is radius of the circle. If ∠DOC = 100°, ∠B is equal to :
50°
60°
40°
70°
In the given figure, O is the centre of the circle and AB is a tangent to the circle at B. If AB = 15 cm and AC = 7.5 cm, calculate the radius of the circle.
A, B and C are three circles which touch each other as shown. Using the information, given in the diagram, we find the length AB as :
6 cm
17 cm
(289 - 9 - 2) cm
11 cm
The radius of a circle is 8 cm. Calculate the length of a tangent drawn to this circle from a point at a distance of 10 cm from its centre.