ABCD is a quadrilateral in which AB||DC. E and F are the midpoints of the diagonals AC and BD, respectively. If AB = 18cm and CD = 6 cm, then EF=?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 6 cm
ABCD is a trapezium and EF || AB || DC then one can directly use a formula as,
EF = 1/2 × (Difference of parallel sides)
EF = 1/2 × (18 - 6)
EF = 12/2 = 6cm.