Calculate the area and circum. farance of figure below.

Radius ya duara $r = 7 \text{ m}$.
Pembe ya sehemu iliyoondolewa $\theta_{\text{removed}} = 50^\circ$.
Pembe ya sekta iliyobaki $\theta_{\text{remaining}} = 360^\circ - \theta_{\text{removed}}$.

$$\theta_{\text{remaining}} = 360^\circ - 50^\circ = 310^\circ$$

Fomula ya eneo la sekta ni $A = \frac{\theta}{360^\circ} \times \pi r^2$.

$$A = \frac{310^\circ}{360^\circ} \times \pi (7 \text{ m})^2$$ $$A = \frac{31}{36} \times 49\pi \text{ m}^2$$ $$A = \frac{1519}{36}\pi \text{ m}^2$$

Kutumia $\pi \approx 3.14159$:

$$A \approx \frac{1519}{36} \times 3.14159$$ $$A \approx 132.59 \text{ m}^2$$

Eneo la umbo ni $\boxed{\text{132.59 m}^2}$.

Fomula ya urefu wa upinde ni $L = \frac{\theta}{360^\circ} \times 2\pi r$.

$$L = \frac{310^\circ}{360^\circ} \times 2\pi (7 \text{ m})$$ $$L = \frac{31}{36} \times 14\pi \text{ m}$$ $$L = \frac{217}{18}\pi \text{ m}$$

Kutumia $\pi \approx 3.14159$:

$$L \approx \frac{217}{18} \times 3.14159$$ $$L \approx 37.87 \text{ m}$$

Perimita ya umbo ni jumla ya urefu wa upinde na radii mbili za moja kwa moja.
Perimita $P = \text{Urefu wa Upinde} + r + r$

$$P = \frac{217}{18}\pi \text{ m} + 7 \text{ m} + 7 \text{ m}$$ $$P = \frac{217}{18}\pi \text{ m} + 14 \text{ m}$$ $$P \approx 37.87 \text{ m} + 14 \text{ m}$$ $$P \approx 51.87 \text{ m}$$

Perimita ya umbo ni $\boxed{\text{51.87 m}}$.