Question

Cara nomor 6,7 dan 9 dong

Answer 1

6. P=3x+3
l=2x+2
kel=30
ditanya:P,l,L....?
jwb: k=2P+2l=2(3x+3)+2(2x+2)=30
=10x+10=30
=10x=20
=x=2
P=3x+3=3*2+3=9
l=2x+2=2*2+2=6
L=P*l=9*6=54