Question

1. (02.04 mc)

given δmno, find the measure of ∠mno. (2 points)
options: 28°, 38°, 52°, 76°

Explanation:

Step1: Find ∠MON

$\angle MON = 180^\circ - 104^\circ = 76^\circ$

Step2: Identify isosceles triangle property

Since $NM=NO$, $\angle NMO = \angle MON = 76^\circ$

Step3: Calculate ∠MNO

$\angle MNO = 180^\circ - 76^\circ - 76^\circ = 28^\circ$

Answer:

28°