Use trig ratios and the Pythagorean Theorem to solve right triangles in applied problems.
Round a right-triangle result to the requested precision
Problem
A right-triangle calculation gives a height of \(17.462~\text{ft}\). Round the height to the nearest tenth of a foot.
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What this problem is really about
Rounding begins with the requested place, then uses only the digit immediately to its right to decide the change. We’ll locate the tenths digit, inspect the hundredths digit, update the retained digit if required, discard the rest, and keep the measurement units.
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