Triangle PAB is formed by three tangents to circle with centre
O and ∠APB = 40°, then angle
AOB equals ______.
(A) 45°
(B) 50°
(C) 55°
(D) 70°
Triangle PAB is formed by three tangents to circle with centre
O and ∠APB = 40°, then angle
AOB equals ______.
(A) 45°
(B) 50°
(C) 55°
(D) 70°