Matematika

Pertanyaan

tolong jawab no. 16sm17
tolong bantuanya.....
terimakasih
tolong jawab no. 16sm17 tolong bantuanya..... terimakasih

1 Jawaban

  • 16.) sudut AOC = AOC + AOB = 180°
    AOC + 45° = 180°
    AOC = 180-45 = 135°
    AOB/AB = AOC/AC
    45/15 = 135/AC
    AC = 135 x 15 / 45
    AC = 45 (a)

    17.) 120/360 x 22/7 x 10,5 x 10,5
    = 115 2/3 (b)