The Height of a Monument Is $20 \mathrm {~m}$ a Horizontal Cross-Section at a Distance

question 132

Short Answer

The height of a monument is $20 \mathrm {~m}$ . A horizontal cross-section at a distance $x$ meters from the top is an equilateral triangle with side $\frac { x } { 4 }$ meters. Find the volume of the monument.

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