figure 4 : the pillar
This image has a scale of 0.325:1. I took this photo in the " Hacienda La Collpa" in one of the pillars. It is an isoceles triangle.
Height : 20 cm.
Base: 19 cm.
Sides: 21 cm.
perimeter : 61 cm.
Area : 190 square cm.
Formula:
Perimeter: 2s + b
Area: (b x h) / 2