$$h_\mathrm{b}$$ $$= \sqrt{\color{#00BFFF}{a}^2 - {(\frac{\color{#00BFFF}{a}}{2})}^2}$$

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1. This simulation shows you how the surface area and volume of a right pyramid change when the side of its base and its slant height are changed.
2. Use the sliders to set the side of the base and the slant height of the right pyramid.
3. The height of the pyramid (the vertical height) varies automatically when the side of the base and slant height are varied.
4. You can also vary the height of the pyramid instead of its slant height.
5. Look carefully at all the values that appear on the screen.
6. Click RESET to start again.