Triangle Side Length
1. **Problem statement:** We have a triangle with angles 44° and 60°, and a side of length 11 cm opposite the 44° angle. We need to find the length $x$ opposite the 60° angle.
2. **Formula used:** We use the Law of Sines, which states:
$$\frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C}$$
where $a$, $b$, and $c$ are sides opposite angles $A$, $B$, and $C$ respectively.
3. **Identify known values:**
- Side $a = 11$ cm opposite angle $A = 44^\circ$
- Angle $B = 60^\circ$
- Side $b = x$ opposite angle $B$
4. **Find the third angle:**
$$C = 180^\circ - 44^\circ - 60^\circ = 76^\circ$$
5. **Apply Law of Sines:**
$$\frac{11}{\sin 44^\circ} = \frac{x}{\sin 60^\circ}$$
6. **Solve for $x$:**
$$x = \frac{11 \times \sin 60^\circ}{\sin 44^\circ}$$
7. **Calculate sine values:**
$$\sin 60^\circ \approx 0.8660$$
$$\sin 44^\circ \approx 0.6947$$
8. **Calculate $x$:**
$$x = \frac{11 \times 0.8660}{0.6947} \approx \frac{9.526}{0.6947} \approx 13.71$$
9. **Round to 2 significant figures:**
$$x \approx 14$$ cm
**Final answer:** The length $x$ is approximately 14 cm to 2 significant figures.