A cistern 6 m long and 4 m wide contains water up to a breadth of 1 m 25 cm. Find the total area of the wet surface. Choices
A) 66 m square	B) 49 m square	C) 77 m square	D) 44 m square	E) 33 m square
Area of the wet surface =   2[lb+bh+hl] - lb = 2 [bh+hl] + lb   = 2[(4*1.25+6*1.25)]+6*4 = 49 m square   Answer: 49 m square
<result>B</result>
A cistern 6 m long and 4 m wide contains water up to a breadth of 1 m 25 cm. Find the total area of the wet surface.