Tolong bantu ya kakak, pake cara sama diketahuinya

53][
F = 50 N
w = 60 N
h = 2,5 m
S = __?

w / F = S / h
S = (w / F) h
S = (60/50) • (2,5 m)
S = 3 m ← jwb


54][
A1 = 5 cm², F = __?
A2 = 50 cm², w = 1800 N

F / A1 = w / A2
F = (A1 / A2) w
F = (5/50) • (1800 N)
F = 180 N ← jwb