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. Using Pythagoras' theorem, derive the equation for calculating the plane diagonal and calculate it to two decimal places.
. Using Pythagoras' theorem, derive the equation for calculating the length of the edge a of the cube and calculate it to two decimal places.
. Using Pythagoras' theorem, derive the equation for calculating the edge of the cube. Calculate the sum of all edges of the cube .
. How many millimeters does the body diagonal measure?
. Using Pythagoras' theorem, derive the equation for calculating the length of the body diagonal and calculate it.
. Calculate the side of the cube.
