find the diagonal of a cube with length 30 cm long 20 cm and 18cm high
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diagonal of floor =√30^2+20^2
=√900+400
=√1300
=36.05
diagonal of cube=√18^2+36^2
=√324+1296
=√1620
= 40.5 approximately
=√900+400
=√1300
=36.05
diagonal of cube=√18^2+36^2
=√324+1296
=√1620
= 40.5 approximately
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