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Mid-point Area
Age 11 to 14
ShortChallenge Level 
$M$ is the midpoint of the side of the rectangle. What is the area (in square units) of the triangle $PMR$?
If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.
This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.
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