Question: 4. A rectangular sheet at metal with dimensiqns 20 am by 15 cm is to he used to create an open top box by cutting

4. A rectangular sheet at metal with dimensiqns 20 am by 15 cm is to he used to create an open top box by cutting a square K cm by x cm tram each corner and bending up the sides. lFthe volume at 315 am3 is required. determine the side length of the squares that must be cut. 20cm 15 cm

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