Answer: The measure of an angle is the same as the measure of its reference angle in the first or fourth quadrant. Since, m∠884° is in the 8th quadrant, we can use the reference angle in the first quadrant, which is m∠4°.
So, m∠1 = m∠4°
To find the measure of the angle m∠3, we can use the fact that angles in different quadrants that share a terminal side have measures that add up to 180°.
m∠3 = 180° - m∠1
m∠3 = 180° - m∠4°
m∠3 = 180° - 4° = 176°
Therefore, m∠1 = m∠4° and m∠3 = 176°.
Explanation: