<span>In a 30-60-90 triangle the side opposite the 30 degree angle is half the length of the hypotenuse. The shorter leg is </span>the side opposite the 30 degree angle, therefore the shorter leg = 30/2 = 15
<span>By the Pythagorean theorem </span><span>the longer leg = </span>√(30² - 15²) = √(900-225) = √675 = 15√3 ≈ 25.98 units
Since the 50 remains the same every time, is has no letters next to it in the equation. The 20, however, is multiplied by the amount of hours, and will therefore have an h next to.
