Answer
$\angle$BOA and $\angle$COB
$\angle$DOC and $\angle$EOD
Work Step by Step
The angles $\angle$BOA and $\angle$COB are complementary angles.
$\angle$BOA + $\angle$COB = 25$^{\circ}$ + 65$^{\circ}$
= 90$^{\circ}$
The angles $\angle$DOC and $\angle$EOD are complementary angles.
$\angle$DOC + $\angle$EOD = 15$^{\circ}$ + 75$^{\circ}$
= 90$^{\circ}$
