Question

Tolong dibantu ya, makasih

Answer 1

P/l = 7/3
p = 7/3 l

p x l = L
7/3 l x l = 525
7/3 l² = 525
l² = 525 (3)/7
l = √225
l = 15cm  (lebar alas balok)

p = 7/3 l
p = 7/3 (15)
p = 35 cm

t /p = 5/7
t = 5p/7
t = 5(35)/7
t = 25 cm

V = 35 x 15 x 25
    = 13.125 cm²