Total angle of shaded sectors = 35° + 50° + 95° = 180°
Area of shaded region = $\dfrac{\theta}{360} \times \pi r^2$
$$= \frac{180}{360} \times \frac{22}{7} \times 5 \times 5$$
$$= \frac{1}{2} \times \frac{22}{7} \times 25 = \frac{550}{14} = \textbf{39.28 cm}^2$$
Source: Areas Related to Circles, Section 11.1
The key insight is that the three sector angles add up to 180°, so the combined shaded region equals a single sector of angle 180° (a semicircle). Apply the formula Area = (θ/360) × πr² directly. Examiners award 1 mark for adding angles correctly and 1 mark for the correct final calculation.