Compound area dominoes or matching activity

This is a versatile resource, it is set up as a dominoes activity/loop game.
Could be played in pairs, or as a trail individually.
Alternatively, you could cut the answers up and use as a matching game, in which case you could take some out if need be.
Each answer is currently on the next card along. With the final one being before the yellow at the front.
Each can be done with knowledge of only rectangles and triangles. Some missing sides need to be found. You could use trapezium formula too if you like.