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:

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: 1 week ago | Updated: 1 week ago | Created By:

Imran Ahmed

49 m2

50 m2

53.5 m2

55 m2

0 1

Best Answer Explained in Below-:

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]\(m^{2}\)">\(m^{2}\) = 49m2">\(m^{2}\)

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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: ?

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