Find the area of trapezium whose parallel sides are 20 cm and 18 cm long, and the distance between them is 15 cm.  Select:
A) 235 cm2  B) 265 cm2  C) 285 cm2  D) 295 cm2  E) 284 cm2
Explanation:   Area of a trapezium = 1/2 (sum of parallel sides) * (perpendicular distance between them) = 1/2 (20 + 18) * (15) = 285 cm2   Answer: Option 285 cm2
<result>C</result>
Find the area of trapezium whose parallel sides are 20 cm and 18 cm long, and the distance between them is 15 cm.