Area Square Quartercircle
1. **Problem Statement:**
Find the area difference between a square of side length 7 units and a quarter circle of radius 7 units inscribed inside it.
2. **Formulae Used:**
- Area of square: $A_{square} = s^2$
- Area of sector (quarter circle): $A_{sector} = \frac{\theta}{360} \times \pi r^2$
3. **Calculations:**
- Side length of square $s = 7$
- Area of square: $A_{square} = 7 \times 7 = 49$
- Angle of sector $\theta = 90^\circ$
- Radius of sector $r = 7$
- Area of sector: $$A_{sector} = \frac{90}{360} \times \pi \times 7^2 = \frac{1}{4} \times \pi \times 49 = 12.25\pi$$
- Approximate value: $12.25 \times 3.1416 \approx 38.48$
4. **Area difference:**
- $A_{difference} = A_{sector} - A_{square} = 38.48 - 49 = -10.52$
5. **Interpretation:**
The quarter circle area is smaller than the square area by approximately $10.52$ square units.
**Final answer:** The difference in area is approximately $10.52$ square units, with the square being larger.