3. Find the complement of each of the following angles:

(i) [tex]$58^{\circ}$[/tex]

(ii) [tex]$160^{\circ}$[/tex]

(iii) [tex]$\frac{2}{3}$[/tex] of a right angle



Answer :

Sure, let's go through each part step-by-step:

(i) [tex]\(58^\circ\)[/tex]

The complement of an angle [tex]\(A\)[/tex] is given by [tex]\(90^\circ - A\)[/tex].

So, for an angle of [tex]\(58^\circ\)[/tex]:

[tex]\[ 90^\circ - 58^\circ = 32^\circ \][/tex]

Thus, the complement of [tex]\(58^\circ\)[/tex] is [tex]\(32^\circ\)[/tex].

(ii) [tex]\(160^\circ\)[/tex]

An angle greater than [tex]\(90^\circ\)[/tex] does not have a complement, as the definition of complementary angles requires that the two angles add up to [tex]\(90^\circ\)[/tex].

Therefore, there is no complement for [tex]\(160^\circ\)[/tex].

(iii) [tex]\(\frac{2}{3}\)[/tex] of a right angle

First, we need to find what [tex]\(\frac{2}{3}\)[/tex] of a right angle is. Since a right angle is [tex]\(90^\circ\)[/tex]:

[tex]\[ \frac{2}{3} \times 90^\circ = 60^\circ \][/tex]

Now, we need to find the complement of [tex]\(60^\circ\)[/tex].

[tex]\[ 90^\circ - 60^\circ = 30^\circ \][/tex]

Thus, the complement of [tex]\(\frac{2}{3}\)[/tex] of a right angle is [tex]\(30^\circ\)[/tex].

Summary of Results:

1. The complement of [tex]\(58^\circ\)[/tex] is [tex]\(32^\circ\)[/tex].
2. There is no complement for [tex]\(160^\circ\)[/tex] as it is greater than [tex]\(90^\circ\)[/tex].
3. The complement of [tex]\(\frac{2}{3}\)[/tex] of a right angle is [tex]\(30^\circ\)[/tex].