tolong dibantu buat hari ini plisss

23. d = 10,5 m
r = 5,25 m
K = 2.π.r
K = 2× 3,14 × 5,25
K = 32,97 m

24. d = 84 m
r = 42 m
K = 2.π.r
K = 2× 22/7 × 42
K = 264 m
Lampu = 264 ÷ 6 = 44 lampu