1. **State the problem:**
We are given triangle $\triangle KNO$ with $m\angle NKO = 30^\circ$ and angles $\angle NKO \cong \angle KNM \cong \angle MNT$. We need to find $m\angle NMT$ and $m\angle NMK$.
2. **Analyze the given information:**
- $m\angle NKO = 30^\circ$
- $\angle NKO \cong \angle KNM \cong \angle MNT$ means these three angles are equal.
3. **Assign variables:**
Let each of these congruent angles be $x$. So,
$$x = m\angle NKO = m\angle KNM = m\angle MNT = 30^\circ$$
4. **Find $m\angle NMT$:**
Since $M$ and $T$ lie on segment $KO$, and $\angle MNT$ is $30^\circ$, consider triangle $\triangle NMT$.
In $\triangle NMT$, the angles are $m\angle NMT$, $m\angle NMK$, and $m\angle MNT$ (which is $30^\circ$).
5. **Find $m\angle NMK$:**
Similarly, in triangle $\triangle NMK$, the angles are $m\angle NMK$, $m\angle KNM$ (which is $30^\circ$), and $m\angle NKM$.
6. **Use angle sum property in triangles:**
- In $\triangle NMK$:
$$m\angle NMK + m\angle KNM + m\angle NKM = 180^\circ$$
$$m\angle NMK + 30^\circ + m\angle NKM = 180^\circ$$
- In $\triangle NMT$:
$$m\angle NMT + m\angle MNT + m\angle NTM = 180^\circ$$
$$m\angle NMT + 30^\circ + m\angle NTM = 180^\circ$$
7. **Note that $m\angle NKM$ and $m\angle NTM$ are supplementary because points $K, M, T, O$ lie on the same line segment $KO$ with $M$ and $T$ between $K$ and $O$.
Therefore,
$$m\angle NKM + m\angle NTM = 180^\circ$$
8. **Combine equations:**
From step 6,
$$m\angle NMK + 30^\circ + m\angle NKM = 180^\circ$$
$$m\angle NMT + 30^\circ + m\angle NTM = 180^\circ$$
Add these two equations:
$$m\angle NMK + m\angle NMT + 30^\circ + m\angle NKM + 30^\circ + m\angle NTM = 360^\circ$$
Simplify:
$$m\angle NMK + m\angle NMT + m\angle NKM + m\angle NTM + 60^\circ = 360^\circ$$
Using step 7,
$$m\angle NKM + m\angle NTM = 180^\circ$$
Substitute:
$$m\angle NMK + m\angle NMT + 180^\circ + 60^\circ = 360^\circ$$
Simplify:
$$m\angle NMK + m\angle NMT + 240^\circ = 360^\circ$$
Subtract 240°:
$$m\angle NMK + m\angle NMT = 120^\circ$$
9. **Assuming symmetry and equal angles $m\angle NMK = m\angle NMT$ (since $\angle KNM$ and $\angle MNT$ are equal and the figure is symmetric), then:
$$2 \times m\angle NMK = 120^\circ$$
Divide both sides by 2:
$$m\angle NMK = \cancel{\frac{2}{2}} \times \frac{120^\circ}{\cancel{2}} = 60^\circ$$
Therefore,
$$m\angle NMK = 60^\circ$$
And
$$m\angle NMT = 60^\circ$$
**Final answers:**
$$m\angle NMT = 60^\circ$$
$$m\angle NMK = 60^\circ$$
Angle Measures 804E88
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