A special truck cleans the surface of the ice rink shown below. The figure is composed of a
square and two semicircles.
If the truck cleans the entire surface, how many square meters of the ice will the truck clean?
If the side length of the square is 30m and two semi circle has a diameter of 30 m? Round your answer to the nearest tenth. *

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap