Matematika

Pertanyaan

tolong dijawab buat besok
tolong dijawab buat besok

2 Jawaban

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    Mapel : Matematika
    Tentang : Bangun Datar
    Pembahasan :

    Nomor 24 :

    Diketahui :
    - Bangun : ½ Lingkaran
    - d = 7 cm

    Ditanya :
    - L

    L = ½ x ¼ x 22/7 x 7 x 7
    L = ½ x ¼ x 22 x 7
    L = ¼ x 11 x 7
    L = ¼ x 77
    L = 19,25 cm²

    Yg A jawabannya

    Nomor 25 :

    Diketahui :

    - Persegi Panjang :
    • p = 48 cm
    • l = 25 cm

    - Segitiga :
    • a = 48 cm
    • t = 53 - 25 = 28 cm

    Ditanya :
    - L Total

    LPP = p x l
    LPP = 48 x 25
    LPP = 1.200 cm²

    LS = ½ x a x t
    LS = ½ x 48 x 28
    LS = 24 x 28
    LS = 672 cm²

    L Total : 1200 + 672
    L Total : 1872 cm²

    Yg D jawabannya.

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  • luas segitiga ditambah luas persegi panjang. = a*t/2= 28*48/2=672cm^2. p*l= 25*48= 1200cm^2. 672+1200= 1872cm^2