Multiple Choice Question: Let $a$, $b$ be the lengths of the two legs of a right triangle, and $c$ be the length of its hypotenuse. What is the length of the altitude to the hypotenuse?

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Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.

Find the probability that somebody is healthy given that they have positive test result?
A sector of a circle with radius 10 cm has a central angle of 120°. Find the arc length of the sector.
It is the term to denote the temperature range between the highest and lowest temperature recorded for a particular day.
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Area outside equilateral triangle available for grazing by the goat.
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M. Poirot and Miss Marple walk into a turned-off escalator to realize that he is able to walk 3 steps during the time she needs to walk only 2.
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