2х + х + 2х = 180
5х = 180
х = 180 ÷ 5
х = 36° - <B
< D = < P = (180° - 36°)÷2 = 72°
Ответ: 72° ; 36° ; 72°
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2х + х + 2х = 180
5х = 180
х = 180 ÷ 5
х = 36° - <B
< D = < P = (180° - 36°)÷2 = 72°
Ответ: 72° ; 36° ; 72°