tolong, erimakaish banyak

36 FPB 36 dan 45
36=2²×3²
45=3²×5
FPB=3²=9
37 KPK 15,35,dan 40
15=3×5
35=5×7
40=2³×5
KPK=2³×3×5×7
=840
38 luas bangun 1 persegi=s×s
=12×12
=132
luas bangun 2 segitiga=1/2×(a×t)
=12×8
=96
l1+L2
=132+12
=144
39 volume kubus=s³
=50×50×50
=125.000cm³

=2/3×125.000cm³
=125.000 cm³
40 debit=volume: waktu
=110:5
=22 l