Ответ:
АВ = 3232 ед.
Объяснение:
AC = CB, AD = DC => AD = (1/4)·AB. =>
DB = AB - AD = (3/4)·AB. =>
DE = DB/2 = (3/8)·AB.
AE = AD + DE = (1/4)·AB + (3/8)·AB = (5/8)·AB =>
2020 = (5/8)·AB =>
AB = (2020·8)/5 = 3232 ед.
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Verified answer
Ответ:
АВ = 3232 ед.
Объяснение:
AC = CB, AD = DC => AD = (1/4)·AB. =>
DB = AB - AD = (3/4)·AB. =>
DE = DB/2 = (3/8)·AB.
AE = AD + DE = (1/4)·AB + (3/8)·AB = (5/8)·AB =>
2020 = (5/8)·AB =>
AB = (2020·8)/5 = 3232 ед.