In the adjoining figure, name the following pairs of angles.

(i) Obtuse vertically opposite angles

(ii) Adjacent complementary angles

(iii) Equal supplementary angles

(iv) Unequal supplementary angles

(v) Adjacent angles that do not form a linear pair

(i) From the given figure,

Obtuse vertically opposite angles are:

∠AOD, ∠BOC

(ii) From the given figure,

Adjacent complementary angles are:

∠EOA, ∠AOB

(iii) From the given figure,

Equal supplementary angles are:

∠EOB, ∠EOD

(iv) From the given figure,

Unequal supplementary angles are:

∠EOA, ∠EOC

(v) From the given figure,

Adjacent angles that do not form a linear pair are:

∠AOB and ∠AOE

∠AOE and ∠EOD

Also,

∠EOD and ∠COD

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