ACTIVITY A. Give the number of diagonals formed by the following polygons. 1. 16-gon 2. Hexagon 3. Nonagon 4. 12-gon 5. 13-gon B. Determine the number of sides of the polygon given the number of diagonals. 1. 0 2. 104 3. 5 4. 77 5. 170
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16-gon: To find the number of diagonals in a polygon, we can use the formula n(n-3)/2, where n is the number of sides of the polygon. For a 16-gon, n = 16, so the number of diagonals is 16(16-3)/2 = 16(13)/2 = 104. Show more…
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