Matematika

Pertanyaan

tolong dijawab ya yg no 3 A dan B
makasii :))
tolong dijawab ya yg no 3 A dan B makasii :))

1 Jawaban

  • Keliling 1/2 lingkaran
    = 1/2×2πr+14
    = 1/2×2×22/7×7+14
    = 22+14
    = 36

    Keliling bangun datar
    = 1/2×2πr+12+9+12
    = 1/2×2×3,14×3+12+9+12
    = 9,42+33
    = 42,45

    Semoga bermanfaat maaf kalo salah:)