Question

Tick ($\surd$)the correct answer in each of the following:

The complementary angle of $65°$ is:

• A. (a) $35°$
• B. (b) $25°$
• C. © $15°$
• D. (d) $115°$

Answer 1

The correct option is B

(b) $25°$

Complementary angles are angles whose sum is equal to $90°$

Let the complementary angle of $65°$ is $x$

Then,

$$\begin{gathered} 65°+x=90° \\ \Rightarrow x=90°-65° \\ \Rightarrow x=25° \end{gathered}$$

Hence, the complementary angle of $65°$ is $25°$.