Pool

How many hl of water is in a cuboid pool (a = 25m, b = 8m) if the area of the wetted walls is 279.2 m2?

Correct result:

V =  2400 hl

Solution:

a=25 m b=8 m S=279.2 m2  S1=a⋅ b=25⋅ 8=200 m2 S=S1+2(a+b)⋅ c c=S−S12⋅ (a+b)=279.2−2002⋅ (25+8)=65=1.2 m  V1=a⋅ b⋅ c=25⋅ 8⋅ 1.2=240 m3  V=V1→ hl=V1⋅ 10  hl=240⋅ 10  hl=2400 hl

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