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July 2022
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Помогите, пожалуйста, решить 53 задачу. Заранее огромное спасибо
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siestarjoki
Verified answer
AD^2= AB^2 +DB^2
AC^2= AB^2 +BC^2
BC=3DB
DB=x
81= AB^2 +9x^2
49= AB^2 +x^2
---------------
32= 8x^2 <=> x=2
DB+BC =4x =8
1 votes
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Answers & Comments
Verified answer
AD^2= AB^2 +DB^2AC^2= AB^2 +BC^2
BC=3DB
DB=x
81= AB^2 +9x^2
49= AB^2 +x^2
---------------
32= 8x^2 <=> x=2
DB+BC =4x =8