How many sig figs does 5 280 feet have ?
2 answers:
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Consider the right triangle in the attached diagram. Using the Pythagorean theorem, you can find the distance marked "a" by
r² = a² + o²
a = √(r² - o²) = √(20² -16²)
a = √(400 - 256) = √144 = 12
The maximum depth is the difference between r and a, so is (20-12) cm = 8 cm.
r² = a² + o²
a = √(r² - o²) = √(20² -16²)
a = √(400 - 256) = √144 = 12
The maximum depth is the difference between r and a, so is (20-12) cm = 8 cm.