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Verified answer
Kelas 8 MatematikaBab Bangun Datar
Keliling = 30
2 . (p + l) = 30
p + l = 30/2
l = 15 - p
Luas = 50
p . l = 50
p . (15 - p) = 50
15p - p² - 50 = 0
p² - 15p + 50 = 0
(p - 10) (p - 5) = 0
p - 10 = 0
p = 10 cm
l = 15 - p
l = 15 - 10
l = 5 cm
p = 10 cm
l = 5 cm
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p > l