The diagram shows a box ABCDEFGH in the shape of a cuboid measuring 2 m by 1.5m by 1.7m.
(a) Calculate the length of the diagonal EC.
(b) Calculate the angle between EC and the base EFGH
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Natural resources are resources that exist without any actions of humankind. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value.
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