The diagram shows a pyramid $$\(O A B C D\)$$. The pyramid has a square base, $$\(A B C D\)$$, with sides 10.5 cm . The vertex $$\(O\)$$ is vertically above the centre of the base, $$\(M\)$$. The height of the pyramid is 24 cm . NOT TO SCALE The diagram shows a frustum of the pyramid $$\(O A B C D\)$$. The height of the frustum is 16 cm . Calculate the volume of the frustum. ..................................... $$\(\mathrm{cm}^{3}\)$$

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