1.

Consider a trapezoidal lamina ABCD, with AB parallel to DC, 6 cm apart; AB is 8 cm; CD is 12 cm; CD extends outwards by 1 cm from the foot of the perpendicular from B on DC. The centre of gravity of the lamina will be

A. Along AC at a height of 3 cm form DC
B. Along BD at a height of 3 cm from DC
C. Along the line joining the mid-point of AB to the mid-point of DC, at a height of 2.8 cm from DC
D. At the inersection point of AC and DB
Answer» D. At the inersection point of AC and DB


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