Matematika

Pertanyaan

plissssss yaaaaaaaaaaaaaa
plissssss yaaaaaaaaaaaaaa

1 Jawaban

  • luas juring = 120/360 × 227 × r × r
    462 = 22/21 × r^2

    r^2 = 462 × 21 ÷ 22 = 441
    = akar 441
    = 21 cm

    JAWABANNYA A.