WebMay 4, 2009 · Use the equation n(n-3) / 2 Where n = number of sides So, 40(40 - 3) / 2 = 740. What describes an important outcome of the Japanese attack on Pearl Harbor during … Weba square (or any quadrilateral) has 4 (4−3)/2 = 4×1/2 = 2 diagonals an octagon has 8 (8−3)/2 = 8×5/2 = 20 diagonals. a triangle has 3 (3−3)/2 = 3×0/2 = 0 diagonals. Try it Yourself: A diagonal can actually be outside the …
How many diagonals does a 20 gon have? – Wise-Advices
WebQ: If the sum of the interior angles of a regular 23-gon is 3780 degrees, what is the measure of ONE…. A: Given: Sum of all interior angles of a regular 23-gon is: 3780°. Q: A two … WebApr 8, 2024 · For n = 4 we have quadrilateral . It has 2 diagonals. Therefore, the number of diagonals in a polygon quadrilateral is 2. For n = 5, we have a pentagon with 5 diagonals. … easy apple cider dressing
View question - need an explanation
WebThe number of diagonals of a polygon can be calculated with the formula, Number of diagonals = n (n - 3)/2; where 'n' represents the number of sides in the polygon. The length of the diagonal of a rectangle with sides 'l' and 'w' is calculated with the formula, diagonal (d) = … WebAug 19, 2024 · Method 1: Number of diagonals in a polygon of 18 sides = 18* (18 – 3)/2 = 135 diagonals. Each vertex makes a diagonal with n-3 other vertices. So each vertex will make 15 diagonals. Total number of diagonals if 3 vertices do not send any diagonals = 135 – 15*3 = 90 diagonals. Method 2: WebHow many sides does the polygon have? answer choices . 18. 16. 20. 14. 18 . alternatives . ... How many diagonals does a 80-gon have? answer choices . 80. 77. 3080. 2085 80 ... answer explanation . Tags: Topics: Question 16 . SURVEY . Ungraded . 180 seconds . Report an issue . Q. Which polygon have 275 diagonals? answer choices . A 275 ... cumulus -chauvet dj low lying fog machine