Question

va rog dau coroana si 30 de puncte exercitiul 10 , 11 , 13 . urgent

Answer 1

10.PdABCD= 2x(L+l)
32=2x(l+2+l)
2x(l+2+l)=32
2xl+2=32:2
2xl+2=16
2xl=16-2
2xl=14
si de aici cred ca stii singur

11
PdABCD=2x(L+l)
4l=208:2
4l=104
l=104:4
l=36
de aicea e simplu

13
3x2xL=60
6XL=60
L=60:6
L=10
4x2xl=64
8xl=64
l=64:8
l=8