ANSWER: Approximately 7 FEET WORK- This is a simple trigonometric equation. We have the distance from the shadow and the angle measure. All you need to do is find the height. Using the acronym SOH CAH TOA we can see we need to use the tangent tan 16.3°= x/24 You find the tangent of 16.3° and then multiply by 24 and you find the height of the umbrella is around 7 feet.