



 
Here is the diagram Sophia sent
Hi Sophia, I redrew the diagram because I am not sure which measurement is 15 cm. I also added some labels and a line segment. I am going to assume that the distance from B to C is 15 cm. Triangle ADB is a right triangle and you know the lengths of AD and DB so Pythagoras' Theorem will tell you the length of AB. Add 15 cm to this to obtain the length of the lid, AC. Next I put the box on the ground and opened the lid. I think part b) of the problem is asking for the distance from C to P. This looks like another job for Pythagoras' Theorem. Penny
 


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