Mathematics
PQ is a tangent to a circle at point P. Centre of circle is O. If △OPQ is an isosceles triangle, then ∠QOP is equal to
30°
60°
45°
90°
Related Questions
In the adjoining figure, sides BC, CA and AB of △ABC touch a circle at point D, E and F respectively. If BD = 4 cm, DC = 3 cm and CA = 8 cm, then the length of side AB is
12 cm
11 cm
10 cm
9 cm
In the adjoining figure, sides BC, CA and AB of △ABC touch a circle at the points P, Q and R respectively. If PC = 5 cm, AR = 4 cm and RB = 6 cm, then the perimeter of △ABC is
60 cm
45 cm
30 cm
15 cm
In the adjoining figure, two circles touch each other at A. BC and AP are common tangents to these circles. If BP = 3.8 cm, then the length of BC is equal to
7.6 cm
1.9 cm
11.4 cm
5.7 cm
In the adjoining figure, PA and PB are tangents at points A and B respectively to a circle with centre O. If C is a point on the circle and ∠APB = 40°, then ∠ACB is equal to
80°
70°
90°
140°
