1. **Problem 1: Find the area of the triangle with base 11 in and height 8 in.**
2. The formula for the area of a triangle is:
$$\text{Area} = \frac{1}{2} \times \text{base} \times \text{height}$$
3. Substitute the given values:
$$\text{Area} = \frac{1}{2} \times 11 \times 8$$
4. Calculate the multiplication:
$$\text{Area} = \frac{1}{2} \times 88$$
5. Simplify by dividing 88 by 2:
$$\text{Area} = \cancel{\frac{1}{2}} \times \cancel{88} 44$$
6. So, the area of the triangle is 44 in$^2$.
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7. **Problem 2: Expressions for the area of the white figure formed by two squares, one inside the other.**
8. The white figure is the area of the larger square minus the area of the smaller square inside it.
9. The area of the larger square is $x^2$.
10. The area of the smaller square is $6^2 = 36$.
11. So, the area of the white figure is:
$$x^2 - 6^2$$
12. Check the options:
- A. $(x - 6)^2$ is the area of a square with side $(x-6)$, not the white figure.
- B. $2x + 2(x - 6)$ is a perimeter expression, not area.
- C. $x^2 - 6^2$ is correct.
- D. $x(x - 6) + 6(x - 6)$ simplifies to $(x + 6)(x - 6) = x^2 - 36$, which is also correct.
- E. $6^2 - x^2$ is the negative of the white figure's area, so incorrect.
13. Therefore, the correct expressions are C and D.
**Final answers:**
- Area of triangle = 44 in$^2$ (Option C)
- Expressions for white figure area: C and D
Triangle Area Expressions 80Cfd0
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