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Автор - RastiUziGang

всё на фото помогите срочно​

Ответ

Автор - MatAlgGeomRus

1. 3, 4

2. 3

S= ((a+b) h)/2

a= 10-3= 7

b= 3+10= 13

S= ((7+13) 8)/2= 80

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