The Louvre Pyramid is about 21.6 meters (70.9 ft) high. We can also find its height using these steps:
First, measure its base edge length to get around 35.0 m (114.8 ft).
Try to measure its slant height where we'll obtain 27.8 m (91.2 ft).
Use the Pythagorean Theorem, H = √(s² - (a / 2)²) = √(27.8² - (35 / 2)²) = 21.6 m
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