1. **State the problem:** Find the surface area of a right circular cone with height $19$ cm and base radius $3$ cm, using $\pi = 3.14$.
2. **Formula for surface area of a cone:**
$$\text{Surface Area} = \pi r^2 + \pi r l$$
where $r$ is the radius of the base and $l$ is the slant height.
3. **Find the slant height $l$:**
Use the Pythagorean theorem since the cone is right circular:
$$l = \sqrt{r^2 + h^2} = \sqrt{3^2 + 19^2} = \sqrt{9 + 361} = \sqrt{370}$$
4. **Calculate $l$:**
$$l \approx 19.235$$
5. **Calculate the surface area:**
$$\text{Surface Area} = 3.14 \times 3^2 + 3.14 \times 3 \times 19.235$$
$$= 3.14 \times 9 + 3.14 \times 57.705$$
$$= 28.26 + 181.07 = 209.33$$
6. **Round to the nearest whole number:**
$$\boxed{209} \text{ cm}^2$$
The surface area of the cone is about 209 cm².
Cone Surface Area C05970
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