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Perhatikan gambar prisma trapesium siku-siku berikut. Luas permukaan bangunan adalah...

Perhatikan gambar prisma trapesium siku-siku berikut.

Luas permukaan bangunan adalah...

  1. 176 space c m squared

  2. 800 space c m squared

  3. 1.088 space c m squared

  4. 1.152 space c m squared

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M. Robo

Master Teacher

Jawaban terverifikasi

Pembahasan

L subscript A B F E end subscript equals L subscript C D H G end subscript equals 1 half left parenthesis A B space plus space E F right parenthesis space cross times B F space equals 1 half left parenthesis 16 plus 10 right parenthesis cross times 8 space equals space 13 space cross times 8 space equals 104 space c m squared L subscript A B C D end subscript equals A B space cross times space B D space equals space 16 cross times 20 space equals 320 space c m squared A E space equals space square root of left parenthesis A E apostrophe right parenthesis squared plus left parenthesis E E apostrophe right parenthesis squared end root space equals space square root of 6 squared plus space 8 squared end root space equals square root of 36 plus 64 end root equals square root of 100 space equals 10 space c m L subscript A D H E end subscript equals A D cross times A E equals 20 cross times 10 equals 200 space c m squared L subscript B C G F end subscript equals B C cross times B F equals 20 cross times 8 equals 160 space c m squared L subscript E F G H end subscript equals E F cross times F G equals 10 cross times 20 equals 200 space c m squared L subscript P r i s m a end subscript equals L subscript A B F E end subscript plus L subscript C D H G end subscript plus L subscript A B C D end subscript plus L subscript E F G H end subscript plus L subscript B C G F end subscript plus L subscript A D H E end subscript L subscript P r i s m a end subscript equals 104 plus 104 plus 320 plus 200 plus 160 plus 200 space equals space 1.088 space c m squared

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