Fig. 10.33 Fig. 10.34 4. In Fig. 10.34, rays OA, OB, OC, OD and OE have the common end point O. Show that ZAOB + ZBOC + ZCOD + ZDOE + ZEOA = 360°.

In Figure,rays OA,OB,OC, OD and OE have the common end point O .Show that /_AOB+/_BOC+/_COD+/_DOE+/_EOA=360^(@)

In given fig. , Rays OA, OB, OC, OD and OE have common initial point O. Show that angleAOB + angleBOC + angleCOD + angleDOE + angleEOA = 360^@ .

In Figure, rays O A ,\ O B ,\ O C ,\ O D\ a n d\ O E have the common end point O . Show that /_A O B+\ /_B O C+\ /_C O D+\ /_D O E+\ /_E O A=360^0

In given fig. Rays OA, OB, OC, OD and OE have common initial point O. Show that angleAOB + angleBOC + angleCOD + angleDOE + angleEOA = 360^@ .

In Fig. 7.8, OA = OB and OD = OC. Show that (i) Delta AOD cong Delta BOC and (ii) AD || BC.

In Fig, OA . OB = OC . OD. Show that angle A=angle C and anlge B=angleD .

In Fig.10.64,BC is a tangent to the circle with centre O.OE bisects AP.Prove that Delta ABC-Delta AEO

In Fig.4.34,A,B and C are points on OP,OQ and OR respectively such that ABPQ and BCQR. Show that ACPR (FIGURE)

In Fig. 4.34, A ,\ B and C are points on O P ,\ O Q and O R respectively such that A B P Q and B C Q R . Show that A C P R . (FIGURE)

In fig., O is a point in the interior of a triangle ABC, OD ⊥ BC, OE ⊥ AC and OF ⊥ AB. Show that:- O A^ 2 + O B^ 2 + O C^ 2 − O D^ 2 − O E^ 2 − O F^ 2 = A F^ 2 + B D^ 2 + C E^ 2