Question

1. in the figure below, which angle is complementary to $angle 4$?$\bigcirc$ $angle 2LXB0\bigcirc$ $angle 1$$\bigcirc$ $angle 3$

Explanation:

Step1: Define complementary angles

Complementary angles sum to $90^\circ$.

Step2: Identify right angle

The square symbol shows $\angle 3 + \angle 4 + \angle 5 = 90^\circ$, so $\angle 4 + \angle 5 = 90^\circ$.

Step3: Match to definition

Since $\angle 4 + \angle 5 = 90^\circ$, they are complementary.

Answer:

$\boldsymbol{\angle 5}$ (Option: $\boldsymbol{\angle 5}$)