Posted by Chandan kumar on Sunday, November 6, 2011 at 1:06am.
A cuboid has total surface area of 40 meter squar and its lateral surface area is 26 meter squar .Find the area of its surface

Maths  MathMate, Sunday, November 6, 2011 at 8:28am
Total surface arealateral surface area
= 2*(surface of top + surface of bottom)
4026
2*(surface of top + surface of bottom)=14
surface of top (or bottom) = 14/2=7

Maths  Umakant, Monday, March 7, 2016 at 5:52am
Surface area =2(L+b)×h

Maths  panchami, Saturday, November 26, 2016 at 11:20am
T.S.A=2(lb+bh+lh)
lb+bh+lh= 40/2 [eq 1]
L.S.A= 2h(l+b)
26/2=lh+bh [eq 2]
from eq 1&2 we get,
lb+13=20
lb=7cm
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