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Find the complement of each of the following angles:
"
To do:
We have to find the complement of each of the given angles.
Solution:
Two angles are said to be complementary if the sum of their measures is $90^{\circ}$.
If two angles are complementary, each angle is said to complement of the other angle.
Complement of an angle $x$ is $90^{\circ}-x$.
Therefore,
(i) Complement of $20^{\circ}$
$= 90^{\circ}-20^{\circ}$
$=70^{\circ}$
(ii) Complement of $63^{\circ}$
$= 90^{\circ}-63^{\circ}$
$=27^{\circ}$
(iii) Complement of $57^{\circ}$
$= 90^{\circ}-57^{\circ}$
$=33^{\circ}$
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