Find the area of trapezium whose parallel sides are 18 cm and 12 cm long, and the distance between them is 14 cm?  Choose the correct option:	A) 288 cm 2	B) 277 cm 2	C) 224 cm 2	D) 226 cm 2	E) 227 cm 2

Rationale: "area of a trapezium = 1 / 2 ( sum of parallel sides ) * ( perpendicular distance between them ) = 1 / 2 ( 18 + 12 ) * ( 14 ) = 224 cm 2 answer : c"
Answer: C