tolong ya pliiisss senin dikirimkan
Jawab:
Luas ABFE = 17 x 20 = 280
Luas ADHE = 12 x 20 = 240
Luas CDHG = 8 x 20 = 160
panjang CB = phytagoras, jadi
[tex]\sqrt{(17-8)^2+(12)^2}[/tex]
[tex]\sqrt{25+144}[/tex]
[tex]\sqrt{169} =13[/tex]
Luas BCGF = 13 x 20 = 260
Luas ABCD = (8 + 17) ÷ 2 x 12 = 150
Luas EFGH = (8 + 17) ÷ 2 x 12 = 150
Total luas =
280 + 240 + 160 +260 +150 + 150 = 1240 cm²
Jawaban = B
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