rosiebui95
rosiebui95
28-02-2018
Mathematics
contestada
Please help me with question 7
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choixongdong
choixongdong
28-02-2018
lets BD = x
x/ 3 = 12/x
x^2 = 36
x = 6
so BD = 6
3^2 + 6^2 = 9+36 = 45
AB = √45
AB = 3√5 or AB = 6.71
answer
AB = 3√5 or AB = 6.71
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