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20 July, 14:16

Sebuah prisma dengan alas berbentuk belah ketupat mempunyai panjang diagonal 24 cm dan 10 cm. jika tinggi prisma 8 cm, maka luas permukaan prisma adalah

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  1. 20 July, 15:21
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    The question in English is

    A prism with a rhombus pedestal has a diagonal length of 24 cm and 10 cm. if the height of the prism is 8 cm, then the surface area of the prism is

    we know that

    h=8 cm

    D=24 cm

    d=10 cm

    Area of the rhombus = (d*D) / 2=10*24/2=120 cm²

    now calculate the side of the rhombus with Pythagorean theorem

    L=√ (d/2) ² + (D/2) ²=√ (10/2) ² + (24/2) ²=13 cm

    surface area of the prism=[120*2+13*8*4]=656 cm²

    the answer is 656 cm²

    the answer in Malay

    kami tahu itu

    h=8 cm

    D=24 cm

    d=10 cm

    Kawasan rombus = (d*D) / 2=10*24/2=120 cm²

    kini mengira sisi rombus dengan teorem Pythagoras

    L=√ (d/2) ² + (D/2) ²=√ (10/2) ² + (24/2) ²=13 cm

    kawasan permukaan prisma=[120*2+13*8*4]=656 cm²

    jawapannya ialah 656 cm²
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