Side Bc 9817B2
1. **Problem Statement:** We need to find the length of side BC in a right triangle where angle A is 35°, side AC (adjacent to angle A) is 2 units, and the right angle is at vertex C.
2. **Identify the sides relative to angle A:**
- AC is adjacent to angle A.
- BC is opposite to angle A.
- AB is the hypotenuse.
3. **Formula to use:**
Since we know the adjacent side and want the opposite side, we use the tangent function:
$$\tan(\theta) = \frac{\text{opposite}}{\text{adjacent}}$$
4. **Apply the formula:**
$$\tan(35^\circ) = \frac{BC}{2}$$
5. **Solve for BC:**
$$BC = 2 \times \tan(35^\circ)$$
6. **Calculate the value:**
Using a calculator,
$$\tan(35^\circ) \approx 0.7002$$
So,
$$BC = 2 \times 0.7002 = 1.4004$$
7. **Round the answer:**
Rounded to the nearest hundredth,
$$BC \approx 1.40$$
**Final answer:** The length of side BC is approximately 1.40 units.