nd the area of trapezium whose parallel sides are 20 cm and 18 cm long, and the distance between them is 13 cm?
Answers.
A) 216 cm 2 B) 238 cm 2 C) 240 cm 2 D) 247 cm 2 E) 250 cm 2

Rationale: "area of a trapezium = 1 / 2 ( sum of parallel sides ) * ( perpendicular distance between them ) = 1 / 2 ( 20 + 18 ) * ( 13 ) = 247 cm 2 answer : d"
Answer: D