length of a rectangle is twice its breadth.if depth of tank is 3m and area pf its four walss is 108m2,find length of tank
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length of a rectangle is twice its breadth.if depth of tank is 3m and area pf its four walss is 108m2,find length of tank
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Answer:
Step-by-step explanation:let length be-x
let breath be -y
x=2y
area=xy
108=2y*y
108=2y²
54=y²
√54=y
now x=2y so
x=2√54
Answer:
breadth=6m
length=12m
Step-by-step explanation:
since ; l=2b , h=3m
2(l+b)h=108m^2
from 1
2(2b+b)3=108
18b=108
b=6m
l=2b
l=12m