Find the surface area of a 10 cm x 4 cm x 3 cm brick.
Choose the correct choice from the following options
A) 84 sq.c.m.  B) 124 sq.cm  C) 164 sq.cm.  D) 180 sq.cm.  E) None
Sol.   Surface area = [2(10 x 4 + 4 x 3 + 10 x 3)] cm2   = (2 x 82) cm2   = 164 cm2.   Answer 164 sq.cm.
<result>C</result>
Find the surface area of a 10 cm x 4 cm x 3 cm brick.