Matematika

Pertanyaan

1. diagonal 1 = 35 cm
diagonal 2 = .......cm
luas = 350 cm2

2.diagonal 1 = ......cm
diagonal 2=24 cm
luas = 480 cm2

1 Jawaban

  • 1. luas layang2 = 1/2 × d1 × d2
    350 = 1/2 × 35 × d2
    350 : 1/2 = 35 × d2
    700 = 35 × d2
    d2 = 700/35
    d2 = 20

    2. 480 = 1/2 × d1 × 24
    480 : 1/2 = d1 × 24
    960 = d1 × 24
    d1 = 960/24
    d1 = 40

    itu jawabannya
    jadikan jwban sya yg terbaik jika benar

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