19. In Fig.10.15, AOB is a diameter of the circle and C, D, E are any three points on the semi-circle. Find the value of ∠ACD + ∠BED. 19. In Fig.10.15 AOB is a diameter of the circle and C D E are any three points on the semi-circle. Find the value of ∠ACD + ∠BED. July 2, 2021 Category: Chapter 10 - Circles , Maths , NCERT Class 9 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related 5. In Fig.10.5, if AOB is a diameter of the circle and AC = BC, then ∠CAB is equal to:1. In Fig. 10.36, A,B and C are three points on a circle with centre O such that angle BOC = 30° and angle AOB = 60°. If D is a point on the circle other than the arc ABC, find angle ADC.Write True or False and justify your answer in each of the following: 6. If AOB is a diameter of a circle and C is a point on the circle, then AC^2 + BC^2 = AB^2.
