Total panjang kawat = 250 cm
sisa = 10 cm
Total kawat yg terpakai = 250 - 10 = 240 cm
maka
240 = 28 x 4 + 12 x 4 + 4x
240 = 112 + 48 + 4x
240 = 160 + 4x
240 - 160 = 4x
80 = 4x
x = 20 cm
T balok = 20 cm
2,5m = 250cm
p = 28cm
l = 12cm
Kerangka = 4p + 4l + 4t
250-10cm = 4x28cm + 4x12cm + 4t
240 = 4(28+12+t)
60 = 40 + t
t = 20cm
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Total panjang kawat = 250 cm
sisa = 10 cm
Total kawat yg terpakai = 250 - 10 = 240 cm
maka
240 = 28 x 4 + 12 x 4 + 4x
240 = 112 + 48 + 4x
240 = 160 + 4x
240 - 160 = 4x
80 = 4x
x = 20 cm
T balok = 20 cm
2,5m = 250cm
p = 28cm
l = 12cm
Kerangka = 4p + 4l + 4t
250-10cm = 4x28cm + 4x12cm + 4t
240 = 4(28+12+t)
60 = 40 + t
t = 20cm