ZAD. 5
BCD=DAB=180-(28+90)=62
ABC=ADC=28+90=118
ZAD. 6
[tex]1.15cm = 1.5dm \\ obw = 2 \times 1.5 + 2 \times 1.6 = 3 + 3.2 = 6.2 \\ [/tex]
B.
[tex]2.14cm = 1.4dm \\ obw = 4 \times 1.4 = 5.6[/tex]
A.
[tex]3.16cm = 1.6dm \\obw = 4 \times 1.6 = 6.4[/tex]
C.
[tex]4.16cm = 1.6dm \\ bok \: 1 = 1.6dm \\ bok \: 2 = 2 \times 1.6 = 3.2 \: dm \\ \\ obw = 2 \times 1.6 + 2 \times 3.2 = 3.2 + 6.4 = 9.6[/tex]
D.
