Q2 of 115 Page 8

In Fig. 8.32, write all pairs of adjacent angles and all the linear pairs.

Adjacent angles are:

(i) ∠AOC, ∠COB


(ii) ∠AOD, ∠BOD


(iii) ∠AOD, ∠COD


(iv) ∠BOC, ∠COD


Linear pairs are:


∠AOD, ∠BOD and


∠AOC, ∠BOC


More from this chapter

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14

The measure of an angle is twice the measure of its supplementary angle. Find its measure.

 1

In Fig. 8.31, OA and OB are opposite rays:


(i) If x = 25°, what is the value of y?


(ii) If y = 35°, what is the value of x?

 3

In Fig. 8.33, find x. Further find ∠BOC, ∠COD and ∠AOD.

 4

In Fig. 8.34, rays OA, OB, OC, OD and OE have the common end point O. Show that ∠AOB +∠BOC +∠COD +∠DOE + ∠EOA = 360°.