A triangle is a 3 sided polygon whose 3 interior angles add up to 180 degrees
The answer is 324 degrees. The general formula is (n-2)*180 degrees, where n=number of sides/vertices(both are same). But this is valid only for convex polygon (every internal angle is strictly less than 180 degrees & every line segment between two nonadjacent vertices of the polygon is strictly interior to the polygon except at its endpoints)
You can usually make valid transformations in one of the expressions until you get the other expression. A "valid transformation" in this context means one that doesn't change the value of the expression.
a biased sample is valid determin
Yes, this is valid Bank Of America ABA number.
A polygon with six sides is called a hexagon.
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Either a Heptagon (the more common name) or a Septagon - both terms are valid.
The sum of the interior angles of a triangle is 180 deg. For a convex polygon with n sides we can divide it to n-2 triangles. So the answer, if the polygon is convex, is (13-2)*180= 1980 deg * * * * * The polygon need not be convex. The formula for the sum of the interior angles is valid as long as the polygon is simple - that it, its sides do not cross each other inside the polygon.
A triangle is a 3 sided polygon whose 3 interior angles add up to 180 degrees
There are many different areas within algebra: linear algebra, algebraic structures, algebraic geometry, vector algebra and so on. Some properties are valid in only some of these and not in others. You need to understand what the properties mean and perhaps keep in mind one or two examples where the property is valid.
They are the same thing, a seven sided polygon. The correct name is "heptagon." People who know a bit about Latin numbers but do not understand that polygon names are derived from Greeknumbers, incorrectly use "septagon," which is not a valid word in the English language, when they want to name a 7-sided polygon.
The answer is 324 degrees. The general formula is (n-2)*180 degrees, where n=number of sides/vertices(both are same). But this is valid only for convex polygon (every internal angle is strictly less than 180 degrees & every line segment between two nonadjacent vertices of the polygon is strictly interior to the polygon except at its endpoints)
Suppose the polygon has n sides. Then sum of the interior angles is (n-2)*180 degrees. Also, each angle is 169 degrees so their sum is 169*n degrees. That is, 180*n - 360 = 169*n or 11*n = 360 which has no integer solution. And, since a polygon, regular or not, cannot have a fractional number of sides, the question does not have a valid answer.
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You can usually make valid transformations in one of the expressions until you get the other expression. A "valid transformation" in this context means one that doesn't change the value of the expression.
You are right with valid