Matematika

Pertanyaan

tolong ya gan.. btw pake rumus pyhtaghoras gak?
tolong ya gan.. btw pake rumus pyhtaghoras gak?

0 Comment.

1 Jawaban

  • BC= 4 cm
    ∠BAC = 30°

    sin 30° = BC/AC
    1/2 = 4/AC
    AC = 8 cm

    cos 30° = AB/AC
    √3/2 = AB/8
    AB = 8√3/2
    AB = 4√3

    AB + AC = 4√3 + 8

    Jawaban A

Pertanyaan Lainnya