Question

Ex 16,17,18. Rapid! Dau coroană.Mulțumesc!​

Answer 1

16. L=44

l=1/4*44=11

P=2L+2l

P=2*44+2*11

P=88+22

P=110

17. L=12

l=1/3*12=4

P=2*12+2*4

P=24+8

P=32

18. L=24 si l=12

P=2*24+2*12

P=48+24

P=72

pt a imprejmui cu 2 randuri de sarma - 72*2= 144

Answer 2

16.

l = L/4 = 44/4 = 11 m

P = 2(l + L) = 2(11 + 44) = 2·55 = 110 m

17.

l = L/3 = 12/3 = 4 m

P = 2(l + L) = 2(4 + 12) = 2·16 = 32 m

18.

P = 2(l + L) = 2(12 + 24) = 2·36 = 72 m

2P = 2·72 = 144 m