July 2022 1 35 Report

1. Дано: ABCD — параллелограмм; AC — диагональ; ∠BAC = 35°; ∠CAD = 25°. Найти: ∠A; ∠B; ∠C; ∠D.


2. Дано: ABCD — параллелограмм; PABCD = 10 см; PABD = 8 см. Найти: BD.

С объяснением плз! ​
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