WebLet 'n' be the number of sides of the regular polygon. ∵ No. of diagonals of regular polygon = n(n – 3)/2. ⇒ (n 2 – 3n)/2 = 54. ⇒ n 2 – 3n – 108 = 0. ⇒ n 2 – 12n + 9n – 88 = 0. ⇒ (n – 12)(n + 9) = 0. ⇒ n = 12, – 9 (Neglecting negative values) ⇒ n = 12. Now, Measure of interior angle of regular polygon = (n – 2 ... WebMar 28, 2024 · = 54 Now, since one vertex does not have any diagonals, the number of diagonals of that vertex needs to be subtracted from the total number of diagonals. In a polygon each vertex makes (n-3) diagonals, in this 12-sided polygon each vertex makes (12-3) = 9 diagonals Hence, the total number of diagonals in this polygon is = (54-9) = 45
How to Find How Many Diagonals Are in a Polygon: 11 Steps
Web54. The number of distinct diagonals possible from all vertices. (In general ½n (n–3) ). In the figure above, click on "show diagonals" to see them. See Diagonals of a Polygon. Number of triangles. 10. The number of triangles created by drawing the diagonals from a given vertex. (In general n–2). WebFeb 28, 2024 · A dodecagon has 54 diagonals. To get this result: Recall that a polygon with n sides has n(n - 3)/2 diagonals. Plug in n = 12 and compute 12 × (12 - 3) / 2 = 54. This is our result. If you forget the formula, compute in how many ways we can choose two out of twelve vertices: it is 12 × 11 / 2 = 66. However, this result includes both sides and ... easiest song to play on guitar tabs
[Solved] What is the measure of each interior angle of a regular poly
WebJul 1, 2014 · Finding number of diagonals of polygon knowing number of points of intersection. 3. Confusion regarding intersection of diagonals. 0. Number of Diagonals in Regular Polygon Makes me Question my Sanity. Hot Network Questions Can I develop Windows, macOS, and Linux software or a game on one Linux distribution? WebOct 20, 2010 · a diagonal of side x has n(n-3)/2 diagonals. how many sides has a polygon with 54 diagonals. Asked by renukasahu8 20 Oct, 2010, 07:38: AM ... Number of diagonals = 54. Therefore, But, number of sides cannot be negative. Thus, the polygon will have 12 sides. We hope that clarifies your query. Regards, Team. TopperLearning. WebA regular hexagon contains six congruent sides and six congruent angles. Let’s use what we know to determine other properties. A number of diagonals is: d = n ( n – 3) 2 = 6 ( 6 – 3) 2 = 9. The sum of the measures of all interior angles is: ( n – 2) ⋅ 180 ∘ = 4 ⋅ 180 ∘ = 720 ∘. The measure of each interior angle: easiest song to play on guitar acoustic