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Jika luas daerah yang diarsir 8 cm2 dan EFGH persegi, luas daerah yang tidak diarsir adalah ....

  1. 96 cm2

  2. 88 cm2

  3. 80 cm2

  4. 40 cm2

R. RGFLLIMA

Master Teacher

Jawaban terverifikasi

Pembahasan

L u a s space d a e r a h space A B C D equals p cross times l  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 12 cross times 8  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 96 space c m squared  L u a s space d a e r a h space E F G H equals s squared  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 4 squared  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 16 space c m squared  L u a s equals left parenthesis L u a s space A B C D minus L u a s space a r s i r right parenthesis plus left parenthesis L u a s space E F G H minus L u a s space a r s i r right parenthesis  space space space space space space space space space equals open parentheses 96 minus 8 close parentheses plus open parentheses 16 minus 8 close parentheses  space space space space space space space space space equals 88 plus 8  space space space space space space space space space equals 96 space c m squared

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