а) Д ( -2 ; -3)
б) О (1 ; -1)
в) АВ = 7
ВС = 5
Р = 2 × 7 + 2 × 5 = 14 + 10 = 24
S =7 × 5 = 35
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а) Д ( -2 ; -3)
б) О (1 ; -1)
в) АВ = 7
ВС = 5
Р = 2 × 7 + 2 × 5 = 14 + 10 = 24
S =7 × 5 = 35