Question

What is the volume in cubic centimeter for building has 631m long and 646m wide and 34m high

Answer 1

First, convert it all to centimetres:

631 m is 63 100 cm;

646 m is 64 600 cm;

34 m is 3 400 cm.

The volume is a product of all dimensions:

$$V=abc=63100\cdot64600\cdot3400=1.39\cdot10^{13}\text{ cm}^3.$$