A city park has an architectural pillar in the shape of a triangular pyramid. The shape of the base of the pillar is an equilateral triangle. The dimensions of the shape of the pillar are as shown below.

The park plans to repaint the lateral area of the pillar. The area of the pillar that will be repainted is _______________ ft2.

Question

A city park has an architectural pillar in the shape of a triangular pyramid. The shape of the base of the pillar is an equilateral triangle. The dimensions of the shape of the pillar are as shown below. 



The park plans to repaint the lateral area of the pillar. The area of the pillar that will be repainted is _______________ ft2.

anonymous · Answer

attachment

anonymous · Answer

I  just need the equation for the lateral area.