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A pentagon has 5 diagonals.
From any one corner, you can draw two diagonals. There are five corners, so that would mean a total of 5 times you could draw 2 diagonals, equalling 10, except that you'd be counting each diagonal twice - once from each of its ends. So, you divide the total number of ten in half, and get 5.
The formula for number of diagonals of any polygon is n*(n-3)/2, where n is the number of sides.
What else can I help you with?
Is a pentagon 3D?
No, a pentagon is 2-D.
It has 2 fewer sides then a heptagon?
It has 2 fewer sides than a pentagon
How many angles is in a pentagon?
There are 5 angles in a pentagon. There are also 5 side in a pentagon.
What is the base for a pentagon?
a pentagon is a 2 dimensional figure. It does not have a base.
I need to decompose and transform a pentagon into 2 shapes. What 2 shapes can make up a pentagon?
A quadrilateral and a triangle
What do the angles in a pentagon add up to?
A pentagon is a five-sided polygon. The sum of the angles of the pentagon is: 180(n - 2) = 180(5 -2) = 180(3) = 540 degrees.
How many more sides does a pentagon have than a triangle?
who many more sides does a pentagon have than a triangle.
What are the attributes of a pentagon?
1) A regular pentagon has 5 sides 2) A regular pentagon has sides that are all the same lenghth 3) A regular pentagon has 5 lines of symmetry 4) A regular pentagon has all obtuse angles
How many parallel lines does a regular pentagon have have?
A regular pentagon has no parallel lines.
5 sided shape with 2 right angles?
a shape with 5 sides and 2 right angles is or are a pentagon so the answer is a pentagon
Why are the interior angles of a pentagon not equal to 180?
Because , for a regular pentagon, the sum of the interior angles of a pentagon = (5-2)*180 = 540 degrees.
How many parallel sides does a pentagon have?
A pentagon may have 0, 2, or 4 parallel lines. A regular pentagon has 0 parallel lines. A pentagon like a house has 2 parallel lines. A rectangle with a corner cut off has 4 parallel lines.
