Find The Dimensions Of This Cuboid

Geometry Level 1

Find the sum of length, breadth & height of a cuboid whose whole surface area is 214 \(\text{cm}^2\negthickspace,\,\) with a base area of 42 \(\text{cm}^2\negthickspace,\,\) and with volume 210 \(\text{cm}^3\negthickspace.\)

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