Matematika

Pertanyaan

tolong jawab nomor 7 pleaseee
tolong jawab nomor 7 pleaseee

2 Jawaban

  • 24 = 4x -2 +2x+2+x+3
    24 = 7x +3
    21 = 7x
    3 = x

    L = 1/2 a×t
    L = 1/2 8×6
    L = 24

    jadi, jawabannya adalah C
  • K = a + b + c
    24 = (x + 3) + (2x+2) + (4x-2)
    24 = 7x + 3
    24 - 3 = 7x
    x = 21/7 = 3
    Luas segitiga = 1/2 at
    L = 1/2 (2*3+2) (3+3)
    L = 1/2×8×6
    L = 24 cm2
    Jawabannya C
    Semoga membantu ^^