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repede ex 10 DAU coroana!

Repede Ex 10 DAU Coroana class=

Răspuns :

A+2b+C= 1450+1232= 2682
(A+2b+C) -(a+c) = 2682-2242= 2b = 440
b=440:2=220
A= 1450-220= 1230
1230+ c = 2242
C= 2242-1230= 1012
(A+b+C)x2=
(1230+220+1012)x2
= 2462x2
=4924 #