Предмет: Геометрия, автор: saninadara49

Срочно помогите 15 баллов

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Ответы

Автор ответа: ForsreFox

0

1. P=(a+b)*2

ABD=70

BDC=тоже 70

2.P=(10+16)*2=52

C=140°

B=40°

D=40°

3.COD=180-(a+a)

P AOD=(a*2)+b

4. C=60°

A=60°

B=120°

D=120°

P ABCD=8*4=32

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