Tolong ini aku gak ngerti buat besok

A. Keliling Daerah yg Diarsir

(i) Keliling Persegi
[tex] = s + s + s + s \\ = 14 + 14 + 14 + 14 \\ = 56cm[/tex]
(ii) Keliling 1/4○
[tex] = \frac{\pi \times d}{4} \\ = \frac{ \frac{22}{7} \times 28}{4} \\ = \frac{22 \times 4}{4} \\ = 22cm[/tex]
(iii) Keliling Daerah Diarsir
[tex] = kel \: 1 - kel \: 2 \\ = 56cm - 22cm \\ = 34cm[/tex]
B. Luas Daerah yg Diarsir

(i) Luas Persegi
[tex] = s \times s \\ = 14 \times 14 \\ = 196 {cm}^{2} [/tex]
(ii) Luas 1/4○
[tex] = \frac{\pi \times {r}^{2} }{4} \\ = \frac{ \frac{22}{7} \times {14}^{2} }{4} \\ = \frac{ \frac{22}{7} \times 196}{4}[/tex]
[tex] = \frac{22 \times 28}{4} \\ = 22 \times 7 = 154 {cm}^{2} [/tex]
(iii) Luas Daerah Diarsir
[tex] = l1 - l2 \\ = 196 {cm}^{2} - 154 {cm}^{2} \\ = 42 {cm}^{2} [/tex]
MAAF KALAU ADA YG SALAH;)