Volumes Practice Test 3

Question : 8 of 40

Marks: +1, -0

A cistern 6m long and 4m wide, contains water upto a depth of 1m 25cm. Find the total area of the wet surface.

Solution:

Here, total surface area of the wet surface = 6 × 4 + 2 × 1.25 × (6 +4)
= 24 + 2.5 × 10 =

49 m^2

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