Matematika

Pertanyaan

Tolong nomor 15 dan 16 pls
[PAKAI CARA]
Tolong nomor 15 dan 16 pls [PAKAI CARA]

1 Jawaban

  • L juring = x/360Πr²
    Πr² = 360/x × L juring
    Πr² = 360/180 × 77
    Πr² = 154
    r² = 154/Π
    r² = 154/3,14
    r² = 49
    r = 7 ..


    Semoga bermanfaat ..