Question

2,4,5 Va rooog.Dau coroana

Answer 1

2. P = 360, l = 2/4xL

P = 2xl +2xL

P = 2 (2/4xL) + 2xl

P = 4/4 xL+ 2xL = L+2L

P= 3L=360, L = 360:3, L = 120m

l = 2/4x120. l = 240/4, l = 60m

4.

125:5 =25 tei pe o alee

25+25 = 50 tei pe ambele parti

5.P part = P drept = 54

P patrat = 4 x L

84 = 4xL, L = 84:4, L = 21