Sub
b=3a so put 3a for every b
c=5a so put 5a for every c
a+3a+5a=180
9a=180
divide 9 both sides
a=20
b=3a
b=3(20)
b=60
Wow woqlqnw e let me know if I need more help
You can solve for the base by inputting all the values you know into the volume formula for a triangular pyramid, which is:
(1/3)bh = V
where b = base and h = height.
(1/3)b(6) = 128
2b = 128
b = 64 feet.
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