A cistern 6m long and 4m wide contains water up to a depth of 1 m 25 cm. The total area of the wet surface is:
Created: 6 years ago |
Updated: 2 years ago
best des
Area of the wet surface = [2(lb + bh + lh) - lb]
= 2(bh + lh) + lb
= [2 (4 x 1.25 + 6 x 1.25) + 6 x 4]
= 49
Md Azizur Rahman
Founder of Satt
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