Question
ABCD is a parallelogram. Let C′ be a point on AC extended such that the length of AC′=1.2AC. Let D′ be on the segment BD such that the length of BD′=0.9BD. The ratio of the area of the quadrilateral ABC′D′ to the area of the parallelogram ABCD can be written as ab, where a and b are coprime positive integers. What is the value of a+b?
Answers
This is a question of Brilliant[dot]org
jishka please ban the IP address of this user. He has posted Brilliant problems earlier,too.
jishka please ban the IP address of this user. He has posted Brilliant problems earlier,too.
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