please jawab lagi darurat nih!!pake cara

2) k.persegi pjg= 2(p+l)
224= 2(p+l)
p+l= 224:2= 112
perbandingan = 5:3
p= 5/8.112= 5.14= 70 m

9) skala=1:300, p=9, l=6
p.asli = 9:(1:300)= 9.300= 2700cm= 27m
l.asli = 6:(1:300) = 6.300= 1800cm= 18m
L.= 27.18= 486m2

10) skala=1:250 p=30m=3000cm l=15m=1500cm
p.denah= 3000.1:250= 12cm
l.denah= 1500.1:250= 6cm
L.denah= 12.6=72cm2