A lawn sprinkler is setup in the corner of a rectangular lawn which is enclosed by a fence. The sprinkler has a maximum spray distance of 5 m. The lawn has side lengths 4 m and 10 m. This situation is illustrated in the diagram below, where the sprinkler is positioned in the top right corner. 4 m by 10 m with a spray distance of 5 Find the angle a in the diagram, leaving your answer in degrees. Find the area of grass that is currently being watered by the sprinkler in this position. HINT for a): use trigonometry to find the angle next to angle a!